help needed please:)​

The  number of "+" signs to the Expected value under the null hypothesis

Step 1: State the null and alternative hypotheses:

- Null hypothesis (H0): There is no difference in mean response times for the two stimuli.

- Alternative hypothesis (Ha): There is a difference in mean response times for the two stimuli.

Step 2: Determine the critical region:

Since α (the significance level) is given as ≤ 0.05, we will use a two-tailed test and split the significance level equally in both tails. This means we will consider the critical region in the upper and lower tails, each with a significance level of 0.025.

Step 3: Apply the sign test:

The sign test is used when the data are paired and the differences between pairs are analyzed. In this case, we are comparing the response times for the two stimuli within each subject.

For each subject, compare the response times for the two stimuli and record whether the first stimulus had a shorter response time (sign "-") or a longer response time (sign "+"). Then, count the number of "+" signs and the number of "-" signs.

Step 4: Determine if the test statistic falls into the critical region:

Using the sign test, we compare the observed number of "+" signs to the expected number under the null hypothesis. If the observed number falls into the critical region, we reject the null hypothesis.

Since the actual data table is not provided, I cannot determine the exact results of the sign test. You would need to perform the calculations based on the given data. you have the actual results table, please provide it so that I can assist you further in performing the sign test and drawing a conclusion based on the results.

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Answer: 42

Step-by-step explanation:

Answer:

1. 240 oz

2. 6000lb

3. 20 lb

4. 368 oz

5. 12000 lb

6. 9 lb

7. 30000 lb

8. 22

9. 288

Step-by-step explanation:

Answer:

1. 240

2. 6613.87

3. 20

4. 368

5. 13227.7

6. 9

7. 33069.3

8. 22

9. 288

Step-by-step explanation:

Producing rDNA involves isolating and cleaving DNA, inserting fragments into a vector, and transforming host cells. rDNA can be introduced via transformation, transfection, or viral vectors. Clinical applications include protein production, gene therapy, vaccines, and diagnostics.

Producing a recombinant DNA (rDNA) vector involves several general steps. Here are the three main steps involved in the process:

Isolation and Cleavage of DNA:

The first step is to isolate the desired DNA fragments from the source organism. This can be done using various techniques such as PCR (Polymerase Chain Reaction) or restriction enzyme digestion. Restriction enzymes are enzymes that cut DNA at specific recognition sites. By using the appropriate restriction enzymes, the desired DNA fragment and a vector DNA can be cut at specific sites. The vector is usually a plasmid, which is a small circular DNA molecule.

Insertion of DNA Fragments into the Vector:

Once the DNA fragments and vector have been cut, they are mixed together and joined through a process called ligation. DNA ligase is used to catalyze the formation of covalent bonds between the ends of the DNA fragments and the vector. This creates a recombinant DNA molecule containing the desired DNA fragment within the vector. The recombinant DNA molecule is then introduced into host cells for replication.

Transformation of Host Cells:

The recombinant DNA molecules need to be introduced into host cells to produce multiple copies of the recombinant DNA. This is typically done using a process called transformation. Host cells, such as bacteria or yeast, are treated in a way that makes them more receptive to taking up the recombinant DNA. Methods for transformation include heat shock, electroporation, or using chemical agents. Once the host cells have taken up the recombinant DNA, they can be grown in culture to produce large quantities of the desired DNA fragment.

Introduction of rDNA into Cells:

Recombinant DNA can be introduced into cells using various methods, depending on the type of cells being targeted. Some common techniques include:

Transformation: As mentioned earlier, host cells, such as bacteria or yeast, can be treated to make them receptive to taking up the recombinant DNA. This can be achieved by exposing the cells to heat shock, electroporation, or using chemical agents.

Transfection: This method is used for introducing rDNA into eukaryotic cells, including animal cells. It involves the use of techniques such as calcium phosphate precipitation, liposome-mediated transfection, or electroporation.

Viral Vectors: Certain viruses, such as retroviruses, adenoviruses, or lentiviruses, can be modified to carry the recombinant DNA. These viral vectors can then infect target cells and deliver the rDNA into the host genome.

Clinical Applications of rDNA:

Recombinant DNA technology has revolutionized biomedical research and has led to numerous clinical applications. Some important applications include:

Production of Therapeutic Proteins: rDNA technology allows for the production of large quantities of therapeutic proteins, such as insulin, growth factors, clotting factors, and monoclonal antibodies. These proteins can be used to treat various diseases, including diabetes, cancer, and genetic disorders.

Gene Therapy: rDNA vectors can be used to deliver functional copies of genes into target cells to correct genetic defects. This holds promise for the treatment of inherited diseases caused by single gene mutations, such as cystic fibrosis and muscular dystrophy.

Vaccine Development: Recombinant DNA technology has been instrumental in the development of vaccines. By expressing specific antigens from pathogens, recombinant vaccines can be created to stimulate an immune response without causing disease.

Diagnostic Tools: Recombinant DNA techniques are used to produce specific DNA or RNA probes for diagnostic purposes. These probes can detect the presence of specific genes or mutations associated with diseases, aiding in early detection and personalized medicine.

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Answer:

$1.935

Step-by-step explanation:

As the store is offering a 15% discount, you have to calculate the 15% of the price of the game app to find the amount of the discount:

Price of the game app= 12.90

12.90*15%=1.935

According to this, the answer is that the amount of the discount if you buy the game app during the sale is $1.935 and you would have to pay: 12.90-1.935= $10.965.

Answer:

The missing fraction is 6/12

(you can further simplify this but the question requires that you don't do that)

Step-by-step explanation:

To add fractions easily, their denominators should have the same value, so the denominator should be 12,

Then, to get 16 in the numerator, we need to find a number that on adding to 10, gives 16, or,

10 + x = 16

x = 16 - 10

x = 6

So, the numerator should be 6

so we get the fraction, 6/12

We can also solve it in an alternate way,

\(10/12 + x = 16/12\\x = 16/12 - 10/12\\x = (16-10)/12\\x = 6/12\)

Answer:

m= 1/2

Step-by-step explanation:

Use the slope formula to find the slope  m .

Hey there!☺

\(Answer:\boxed{683\frac{13}{20}}\)

\(Explanation:\)

\(594\frac{7}{25}+89\frac{37}{100}\)

To solve, we will need to evaluate:

\(594\frac{7}{25}+89\frac{37}{100}=\frac{13673}{20}\)

We're not done yet because we need to simplify 13673/20:

\(\frac{13673}{20}=683\frac{13}{20}\)

Hope this helps!☺

683 13/20 mymathlab helps with this too btw

Answer:

done.

Step-by-step explanation:

yeah+ya .... right?

To determine A we will use the inverse function of the sine ( the arcsine):

Now, we convert A from degrees to degrees and minutes:

Answer:

The equation is a shorthand method for writing a mathematical rule.

The answer to your question is b.equation. An equation is a shorthand method for writing a mathematical rule. It represents a relationship between two or more variables using mathematical symbols and operations. Equations are commonly used in algebra, calculus, and other areas of mathematics to solve problems and make predictions. They are written using an equal sign (=) to show that the expression on the left is equal to the expression on the right. Equations are an important tool in mathematics because they allow us to express complex ideas in a concise and precise way. By using equations, we can simplify calculations and solve problems more efficiently.
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Hi.

Answer:

It will take them 7.89 days

Answer:

I believe it'd be 8r.

According to the information, we plan to have cruising speed on for a minimum of 3 hours and a maximum of 4.1 hours.

To calculate how many hours we are going to have the cruising speed on we must carry out the following process:

To calculate the minimum we must subtract 35 from 215 and then divide by the speed:

So the minimum hours would be 3 hours.

On the other hand, to calculate the maximum we must add 35 to 215 and divide it by the speed:

So the maximum time would be 4.1 hours.

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The particular solution for the given non-homogeneous system of first-order linear differential equations is:

\(Y = 54x - (5/3)x^3 + 3x^2 + 25x + 16\)

To find the particular solution for the non-homogeneous system of first-order linear differential equations, we need to substitute the given values into the system and solve for the unknown coefficients.

The given system is:

\(Y' = 54 - 5x^2 + 6x + 25\\Y(0) = 12 - x^2 + 2x + 4\)

Differentiating the second equation, we have:

\(Y'(0) = -2x + 2\)

Now, let's substitute these values into the first equation:

\(Y' = 54 - 5x^2 + 6x + 25\)

Since there are no derivatives of Y in the equation, we can integrate both sides with respect to x to find the particular solution:

\(\int Y' dx = \int (54 - 5x^2 + 6x + 25) dx\)

Integrating each term separately, we get:

\(Y = 54x - (5/3)x^3 + 3x^2 + 25x + C\)

Now, using the initial condition\(Y(0) = 12 - x^2 + 2x + 4\), we can substitute x = 0 and \(Y = 12 - x^2 + 2x + 4\) into the equation to solve for the constant C:

\(12 - 0 + 2(0) + 4 = 54(0) - (5/3)(0^3) + 3(0^2) + 25(0) + C\)

16 = C

C= 16

Therefore, the particular solution for the given non-homogeneous system of first-order linear differential equations is:

\(Y = 54x - (5/3)x^3 + 3x^2 + 25x + 16\)

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They have the same slope, the lines are parallel to one another.

If two non-vertical lines that are in the same plane has the same slope, then they are said to be parallel. Two parallel lines won't ever intersect.

The slopes of two perpendicular lines are negative reciprocals. The product of the slopes of two perpendicular lines is -1

We need to put these equations into y=mx+b format.

3x-5y=20

-5y=-3x+20. (take 5x from both sides)

y=3/5 x -4 ( divide both sides by -3)

The slope is 3/5

y=3/5x-1

The slope is 3/5

Therefore, we can conclude that the lines are parallel to each other as they have same slope.

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Answer: 361

Step-by-step explanation:

Answer:

s < 50

Step-by-step explanation:

This is an inequality that can be used to express the amount of flowers planted. If Jones planted s flowers, Kerry planted 50, and Jones planted less flowers than Kerry, s must be less than 50.

Answer: 6/5

Step-by-step explanation:

Group the variables together on one side and the numbers together on the other.

(5/6)x = 1

x = 6/5

Answer:

x = 6/5

Step-by-step explanation:

1x/2 + 1x/3 = 4-3

3x/6 + 2x/6 = 1

5x/6 = 1

5x = 6

x = 6/5

Profitability index is 1.387. Thus, the correct option is (c) 1.387.

The formula for calculating the profitability index is:

P.I = PV of Future Cash Flows / Initial Investment

Where,

P.I is the profitability index

PV is the present value of future cash flows

The initial investment in the project is $30 million. The cash flow at the end of the first year is $2.85 million.

The present value of cash flows can be calculated using the formula:

PV = CF / (1 + r)ⁿ

Where,

PV is the present value of cash flows

CF is the cash flow in the given period

r is the discount rate

n is the number of periods

For the first-year cash flow, n = 1, CF = $2.85 million, and r = 11%.

Substituting the values, we get:

PV = 2.85 / (1 + 0.11)¹ = $2.56 million

To calculate the present value of all future cash flows, we can use the formula:

PV = CF / (r - g)

Where,

PV is the present value of cash flows

CF is the cash flow in the given period

r is the discount rate

g is the constant growth rate

For the subsequent years, CF = $2.85 million, r = 11%, and g = 3.85%.

Substituting the values, we get:

PV = 2.85 / (0.11 - 0.0385) = $39.90 million

The total present value of cash flows is the sum of the present value of the first-year cash flow and the present value of all future cash flows.

PV of future cash flows = $39.90 million + $2.56 million = $42.46 million

Profitability index (P.I) = PV of future cash flows / Initial investment

= 42.46 / 30

= 1.387

Therefore, the correct option is (c) 1.387.

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Answer:

90 sides

Step-by-step explanation:

180–24 = 156. This needs dividing in the ratio 1:38 so the exterior angle is 156/39= 4°

The number of sides = 360/4 = 90

Answer:

~ 3 1/2 days

Step-by-step explanation:

Mr.Tram travels at a constant speed of 60 km per hour, and travels for up to 8 hours per day (max). Multiply 8 with 60:

60 x 8 = 480

Next, divide 480 from 1620 to get the amount of days:

1620/480 = 3.375

~ 3 1/2 days is how long Mr.Tram will take to travel from Dallas, TX to Detroit, MI.

~

Answer:

4 days

Step-by-step explanation:

If he drives 60 km an hour and drives 8 hours a day, he can drive (60*8 = 480)

480 km in a day.

If the total distance is 1620 km and he drives 480 km a day (1620/480 = 3.375) it would take him four days to take his trip. You have to round up to 4 in this scenario. You can't round down because in three days he'd only have traveled (480*3 = 1440) 1440 km. If you even drive for a second on the fourth (3 < x < 4) day, then the trip "took" four days.  

Answer:

Given: y = x2 + 4x – 5

Find the following

y-intercept

x-intercepts or the zeros of the functions or roots

graph of the function, given vertex is at (-2, -9)

Solve the system of linear equations      – x + 6y = 8        2x + 5y = 3

Write the names of curves, given their equations:  

x2/16 + y2/9 = 1

3y = 2x + 5

(x - 5)2 + (y + 6)2 = 25

x2/16 – y2/25 = 1

y = 2x2 + 10x + 25

Write down the first five terms of the arithmetic progression with the first term 8 and common difference 7, then find the 17th

Write down the first five terms of the geometric progression with the first term 3 and common ratio 2, then find the 17th

GIS can assist in location decision-making by combining geography with demographic analysis, automating center-of-gravity problems, providing spatial data for transportation planning, enhancing factor-rating analysis with spatial considerations, and indirectly informing Internet placement for virtual storefronts.

Geographic Information Systems (GIS) can assist in location decision-making by combining geography with demographic analysis (D). GIS technology enables the integration and analysis of various spatial data, including demographic information such as population density, income levels, and consumer behavior.

By overlaying geographic data with demographic data, decision-makers can gain valuable insights into the characteristics and preferences of target markets, helping them identify suitable locations for their businesses.

GIS can automate center-of-gravity problems (C) by applying spatial analysis techniques to determine optimal locations based on factors such as customer demand, transportation networks, and supply chain considerations.

By utilizing GIS, businesses can identify central points or distribution hubs that minimize transportation costs and maximize accessibility to target markets.

While GIS doesn't directly update transportation method solutions (A), it can provide valuable spatial data and analysis that inform transportation planning. This includes mapping and visualizing existing transportation infrastructure, identifying traffic patterns, and optimizing routes for efficient logistics.

Although GIS doesn't computerize factor-rating analysis (B) per se, it can enhance this process by providing a spatial dimension. Factor-rating analysis involves evaluating potential locations based on multiple factors such as cost, labor availability, and market proximity. GIS can incorporate spatial data, such as the proximity of suppliers or competitors, into the factor-rating analysis, enabling more informed decision-making.

GIS may indirectly contribute to providing good Internet placement for virtual storefronts (E). By analyzing factors such as population density, internet infrastructure, and connectivity patterns, GIS can help businesses identify areas with a high potential for online customer engagement. However, the direct responsibility of Internet placement lies more within the realm of network infrastructure and internet service providers.

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Answer:

Step-by-step explanation: get a f-

Answer:

5 miles

Step-by-step explanation:

Perimeter of a square = 4s

Where s = side length

We are given that the square has a side length of 1.25 (so s = 1.25)

Plugging this into the formula we acquire perimeter = 4(1.25) = 5 miles

The actual cost to see the game is $150, as that is the amount you paid for the ticket. The cost in this scenario can be considered an opportunity cost. By choosing to attend the game instead of selling the ticket for $400, you forgo the opportunity to earn that additional $400.

In this scenario, the cost of attending the game refers to the actual amount of money you spent on the ticket, which is $150. This is the out-of-pocket expense that directly affects your financial resources.

On the other hand, the opportunity cost is the potential benefit or value that you give up by choosing one option over another. In this case, if you had sold the ticket for $400, you would have received a higher amount of money, which represents the opportunity cost of attending the game. By deciding to go to the game, you forego the opportunity to earn that additional $400.

Opportunity cost is a concept in economics that emphasizes the value of the next best alternative forgone when making a decision. It helps assess the trade-offs involved in different choices and helps in evaluating the true cost of a decision beyond the immediate financial expenses.

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If the spinner has an equal chance of landing on each color, then the probability of landing on pink or blue is 1/2 or 0.5.

Using this probability, we can make the following prediction:

Expected number of times landing on pink or blue = probability of landing on pink or blue * number of spins

Expected number of times landing on pink or blue = 0.5 * 57

Expected number of times landing on pink or blue = 28.5

Therefore, the best prediction possible for the number of times the spinner will land on pink or blue is 28.5 times. However, it is important to note that this is only an expected value and the actual number of times it lands on pink or blue may vary

A) The instantaneous rate of change of the function when x = 5 is 43 miles/hour. B) The average rate of change of the function from 3 to 5 is 37 miles/hour.

A) To find the instantaneous rate of change of the function f(x) = 3x^2 + 13x when x = 5, we need to find the derivative of the function and evaluate it at x = 5.

First, let's find the derivative of f(x):

\(f'(x) = d/dx (3x^2 + 13x)\)

      = 6x + 13

Now, substitute x = 5 into the derivative:

f'(5) = 6(5) + 13

      = 30 + 13

      = 43

Therefore, the instantaneous rate of change of the function when x = 5 is 43 miles/hour.

B) To find the average rate of change of the function from 3 to 5, we need to calculate the change in the function's value divided by the change in x over that interval.

Let's find the function values at x = 3 and x = 5:

\(f(3) = 3(3)^2 + 13(3)\)

     = 27 + 39

     = 66

\(f(5) = 3(5)^2 + 13(5)\)

     = 75 + 65

     = 140

Now, let's calculate the average rate of change:

Average rate of change = (f(5) - f(3)) / (5 - 3)

                     = (140 - 66) / (2)

                     = 74 / 2

                     = 37

Therefore, the average rate of change of the function from 3 to 5 is 37 miles/hour.

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