Now assume the question of interest is: do students who finish early score significantly higher than the general population? Use the .05 level (5\%), and select the correct conclusion. a) Reject the null hypothesis, results indicate the early finishers score higher b) Reject the null hypothesis, results indicate the early finishers score lower c) Reject the null hypothesis, results indicate the early finishers score differently in an unknown way d) Fail to reject the null hypothesis, insufficient evidence to suggest a treatment effect e) Fail to reject the null hypothesis, we have proven early finishers score the same as the general population

Answer:

3.

x −4 0 4

y 1 0 −1

-----------------------

Answer:

71/2 just

Step-by-step explanation:

just like that

ANSWER

Step-by-step explanation:

if x= 6 and y= -4, evaluate: 3x + x/y - y^2

we will just substitute for the values

3(6) + 6/-4 - (-4)²

=18 + 6/-4 - (16)

=18 + 6/-4 - 16

L.C.M=-4

= -72+6-(64)/-4

= -72-64+6/-4

=-136+6/-4

= -130/-4

=32.5 or 32 2/5

I hope I helped

Answer:

with what

Step-by-step explanation:

Wait so what is the factor??

Answer:

its A!!!!!

Step-by-step explanation:

Answer:

465 minutes

Step-by-step explanation:

First things first, you have to make an equation! It would be...

2.50+0.15m=72.25

Keep in mind that m stands for minutes.

Now let's solve it!!

First let's subtract 2.50 from both sides.

0.15m=69.75

Now, let's divide 0.15 on both sides!

m= 465

465 minutes!!

Hope this helped!! :D

So to find any last digit of 3^2011 divide 2011 by 4 which comes to have 3 as remainder. Hence the number in units place is same as digit in units place of number 3^3. Hence answer is 7.

The height to which the hollow sphere rolls up the incline is the same as the height to which the hollow cylinder rolls up, which is 1.0 m in this case.

To determine the height to which the hollow sphere rolls up the incline, we can use the principle of conservation of energy. The initial kinetic energy of both the hollow cylinder and hollow sphere is the same since they have the same mass and initial velocity. This kinetic energy is converted into potential energy as they roll up the incline. The potential energy gained by an object of mass m and height h is given by the formula:

PE = mgh

Since both the hollow cylinder and hollow sphere have the same mass, we can compare their potential energies. Let's assume the potential energy gained by the hollow cylinder is PE_cylinder and the potential energy gained by the hollow sphere is PE_sphere.

PE_cylinder = mgh_cylinder  ... (1)

PE_sphere = mgh_sphere  ... (2)

Since the initial velocity and mass are the same for both objects, we can equate their potential energies:

PE_cylinder = PE_sphere

mgh_cylinder = mgh_sphere

h_cylinder = h_sphere

Therefore, the height to which the hollow sphere rolls up the incline is the same as the height to which the hollow cylinder rolls up, which is 1.0 m in this case.

learn more about potential energy here:
https://brainly.com/question/24284560

#SPJ11

if there is just supposed to be a one-word answer, I think it's

The transformations and their order  to the graph of y=2x to obtain the graph of y=-(4^x-3)+1 are:
1. Vertical shift: +3 units
2. Vertical reflection: over x-axis
3. Horizontal stretch: by a factor of 4
4. Horizontal translation: 1 unit to the left

To transform the graph of y=2x to the graph of y=-(4^x-3)+1, we need to apply a series of transformations in a specific order. Here are the steps:
1. Vertical shift:
  - The graph of y=2x is shifted upward by 3 units because of the "-3" in the equation y=-(4^x-3)+1.
  - The new equation becomes y=-(4^x)+1.
2. Vertical reflection:
  - The graph is reflected over the x-axis because of the negative sign in front of the entire equation.
  - The new equation becomes y=(4^x)-1.
3. Horizontal stretch:
  - The graph is horizontally stretched by a factor of 4 because of the "4" in the equation (4^x).
  - The new equation becomes y=4^(4x)-1.
4. Horizontal translation:
  - The graph is horizontally translated 1 unit to the left because of the "+1" in the equation y=4^(4x)-1.
  - The final equation is y=4^(4x-1)-1.
So, to transform the graph of y=2x to the graph of y=-(4^x-3)+1, we apply the following transformations in order: vertical shift, vertical reflection, horizontal stretch, and horizontal translation.

Learn more about transformations

https://brainly.com/question/13034462

#SPJ11

The transformations and their order to obtain the graph of y = -(4^x - 3) + 1 from the graph of y = 2x are:  1. Subtract 3 from the y-values. 2. Apply a vertical compression or stretching with a base of 4. 3. Reflect the graph across the x-axis. 4. Add 1 to the y-values. By applying these transformations in the given order, we can obtain the desired graph.

To transform the graph of y = 2x to the graph of y = -(4^x - 3) + 1, we can follow these steps:

1. Horizontal Translation: Since there is no addition or subtraction term inside the brackets in the second equation, there is no horizontal translation. Therefore, we do not need to apply any horizontal shift.

2. Vertical Translation: In the second equation, we have a subtraction term outside the brackets. This means that the graph will be shifted downward by 3 units. To achieve this, we subtract 3 from the y-values of the original graph.

3. Vertical Stretch/Compression: The term 4^x in the second equation represents a vertical compression or stretching. Since the base is 4, the graph will be compressed or squeezed vertically. This means that the y-values will change more rapidly compared to the original graph.

4. Reflection: The negative sign in front of the brackets in the second equation reflects the graph across the x-axis. This means that the y-values will be flipped upside down.

5. Vertical Translation (again): Finally, there is a vertical translation of 1 unit added to the entire graph. To achieve this, we add 1 to the y-values.

Learn more about transformations

https://brainly.com/question/11709244

#SPJ11

The probability that the larger of the two rolls was less than or equal to 5 after a six-sided dice is rolled twice is 11/36. Let's break the question down: First, we must find the probability of getting a number 5 or less on a single dice roll: 5/6.

The probability of getting a number greater than 5 on a single dice roll is: 1/6The probability of getting a number less than or equal to 5 on the first roll and then less than or equal to 5 on the second roll is: (5/6) x (5/6) = 25/36 The probability of getting a number greater than 5 on the first roll and then less than or equal to 5 on the second roll is: (1/6) x (5/6) = 5/36 .

The probability of getting a number less than or equal to 5 on the first roll and then greater than 5 on the second roll is: (5/6) x (1/6) = 5/36Thus, the probability of the larger of the two rolls being less than or equal to 5 is: 25/36 + 5/36 = 11/36 The probability that exactly 1 of the flips will turn up as heads after flipping a fair coin 3 times is 3/8. TTH (the third flip is heads, the first and second are tails)The probability of any one of these outcomes is (1/2) x (1/2) x (1/2) = 1/8 Since there are three outcomes that satisfy the condition, the total probability is: 3 x 1/8 = 3/8 Therefore, the probability that exactly 1 of the flips will turn up as heads after flipping a fair coin 3 times is 3/8.

To know more about probability visit:

https://brainly.com/question/31828911

#SPJ11

Answer:

Step-by-step explanation:

Step-by-step explanation:

sorry if answer is wrong

The length of XY, with the area of the rectangular surface of the prism 720 sq.cm, XX' 20 cm and XY : XZ: YZ = 5:3:4, is 12 cm.

Area of the rectangular surface of the prism = 720 sq. cm

XX' = 20 cm

XY : XZ: YZ = 5:3:4

As we know, area of prism = 3 × area of rectangle

⇒720 = 3 × area of rectangle

⇒area of rectangle = 720/3

⇒XY × XX' = 240

⇒XY × 20 = 240

⇒XY = 240/20

⇒XY = 12 cm

Thus, the length of the XY is 12 cm.

To know more about area of rectangle, here

https://brainly.com/question/12019874

#SPJ4

Answer:

11.5

Step-by-step explanation: Since there is 1.15 land miles in one nautical mile you multiply 1.15 by 10 to find how many land miles are in 10 nautical miles.

The number of land miles there in 10 nautical miles will be 11.5.

Multiplication is the general procedure in mathematics in which we multiply two or more numbers by each other to find a new multiplied number.

If and only if the number being multiplied is more than one, multiplication produces a resultant number that is significantly larger than the original number.

As per the given,

One nautical mile = 1.15 land miles

In 10 nautical miles = 1.15 x 10 = 11.5 land miles

Hence "The number of land miles there in 10 nautical miles will be 11.5".

For more information about multiplication,

brainly.com/question/14059007

#SPJ2

Answer:

64 square centimeters

Step-by-step explanation:

The surface are of a pyramid is found by finding the sum of the area of the four sides and the base.

Finding the triangular face:

Area of triangle = \(\frac{1}{2} b h\) = \(\frac{1}{2}*4*6 = 12\)

12 * 4 (4 sides) = 48 square cm

Finding the Base = \(w * l = 4 * 4 = 16\)

Finally, we add it together. 48 + 16 = 64

Answer:

C. 15 cm

Step-by-step explanation:

The formula to find the area of a circle is: π × r²

But since we need to solve for the radius, we use the formula:

\(r = \sqrt{ \dfrac{ A }{ \pi } \phantom{\tiny{!}}}\)

r = radius

A = area

π = 3.14

Now we substitute the information given in the text into the equation

\(r = \sqrt{ \dfrac{ A }{ \pi } \phantom{\tiny{!}}}\)

Substitute values into the equation

\(r = \sqrt{ \dfrac{ 706.5 }{ 3.14 } \phantom{\tiny{!}}}\)

Divide 706.5 by 3.14

\(r = \sqrt{ 225 }\)

Take the square root of 225

\(r = {15 }\)

So, the radius of the pie is 15 cm

(a) There are 81 possible answer sequences for the four questions.

(b) The probability of getting all four answers correct when guessing is approximately 0.01235 when rounded to five decimal places.

(c) The probability of answering at least one question correctly when guessing is approximately 0.51775 when rounded to five decimal places.

(a) Since there are three possible answers for each of the four questions, there are a total of 3^4 = 81 possible answer sequences for the four questions.

(b) If you are guessing on each question, the probability of getting one question correct is 1/3. Since there are four questions, the probability of getting all four correct is (1/3)^4 = 1/81, which is approximately 0.01235 when rounded to five decimal places.

(c) The probability of not getting any question correct is (2/3)^4, since there are two incorrect answers for each question and we are guessing on all four questions. Therefore, the probability of getting at least one question correct is 1 - (2/3)^4, which is approximately 0.51775 when rounded to five decimal places.

Learn more about probability here

brainly.com/question/11234923

#SPJ4

The standard deviation of a normal distribution, whose mean is 75, in which an x-value of 68 has a z-score of -0.53 is σ = 13.207.

Given:

whose mean is 75, in which an x-value of 68 has a z-score of -0.53

μ = 75

x = 68

z = -0.53

we know that:

z = x-μ/σ

σ = x - μ / z

= 68 - 75 / -0.53

= -7/-0.53

= 7/0.53

= 7/53/100

= 7*100/53

= 700/53

= 13.207

Therefore The standard deviation of a normal distribution, whose mean is 75, in which an x-value of 68 has a z-score of -0.53 is σ = 13.207.

Learn more about the standard deviation here:

https://brainly.com/question/12402189

#SPJ1

Answer:

try using mathpapa.

The result of the each of the following set is

A ∪ B = {1, 3, 5, 6, 7, 9}

A ∩ B = {3, 9}

A ∪ C = {1, 2, 3, 4, 5, 6, 7, 8, 9}

A ∩ C = {∅}

A - B = {1, 5, 7}

B - A = {6}

B U C = {2, 3, 5, 6, 8, 9 }

B ∩ C = {6}

The given values are

A = {1, 3, 5, 7, 9}

B = {3, 6, 9}

C = {2, 4, 6, 8}

Then find the each given terms in set roaster notation

Union of the set, intersection of the set  and the difference of the set are the basic operations of set

A ∪ B = {1, 3, 5, 6, 7, 9}

A ∩ B = {3, 9}

A ∪ C = {1, 2, 3, 4, 5, 6, 7, 8, 9}

A ∩ C = {∅}

A - B = {1, 5, 7}

B - A = {6}

B U C = {2, 3, 5, 6, 8, 9 }

B ∩ C = {6}

Therefore, all the given terms has been found

Learn  more about set here

brainly.com/question/29055360

#SPJ4

The 99% confidence interval for the average resting heart rate of the population is between 71.61 bpm and 81.99 bpm.

To construct the 99% confidence interval, we can use the formula:

CI = x (bar) ± z*(σ/√n)

where  x (bar) is the sample mean, σ is the population standard deviation, n is the sample size, and z is the critical value of the standard normal distribution corresponding to a 99% confidence level (which is 2.576).

Substituting the given values, we get:

CI = 76.3 ± 2.576*(12.5/√40) = [71.61, 81.99]

Therefore, we can be 99% confident that the true population mean resting heart rate falls within this interval.

You can learn more about confidence interval at

https://brainly.com/question/20309162

#SPJ11

Store B sells 12591 products.

An equation is a mathematical statement that demonstrates the equality of two mathematical expressions.

Let the number of products Store A sells be x, the number of products store B sells be y, and the number of products store C be z.

Now,

Store C sells 125910 products.

z = 125910 products

Store A sells one-half as many as store C.

x = ( 1/2 )z

x = ( 1/2) × 125910

x = 62955 products

Store A sells five times as many products as store B can be expressed as the equation,

x = 5y

62955 = 5y

Dividing each side by 5,

y = 62955 / 5

y = 12591 products

Store A, B, and C sell 62955, 12591, and 125910 products.

Learn more about equations here:

brainly.com/question/2972832

#SPJ4

Answer:

How much will the handmade scarves and jewellery cost?

How much are they planning to spend on operating costs for their business every year?

Step-by-step explanation:

a) The null hypothesis is population mean sodium level (μ = 141),

b) H0: μ = 141 ; H1: μ ≠ 141

a. Perform a two-tailed test:To perform a two-tailed test, we need to set our level of significance alpha (α) at 0.01.

The null hypothesis would be that the population mean sodium level is the same as that given in the textbook

(μ = 141).

The alternative hypothesis would be that the population mean sodium level differs from that given in the textbook

(μ ≠ 141).

We will use the z-test since the sample size is greater than 30.

A two-tailed test is used when there is no prior assumption or knowledge about the population parameter, and we want to check whether the population parameter is greater than or less than the hypothesized value.

The null hypothesis would be that the population mean sodium level is the same as that given in the textbook (μ = 141), and the alternative hypothesis would be that the population mean sodium level differs from that given in the textbook (μ ≠ 141).

b. State the null hypothesis H0 and the alternative hypothesis H1:

H0: μ = 141

H1: μ ≠ 141

Know more about the null hypothesis

https://brainly.com/question/4436370

#SPJ11

Answer:

a)

Step-by-step explanation:

Answer:

Third option is the right choice.

Step-by-step explanation:

Best Regards!

Answer:

mP = 35

Step-by-step explanation:

QR = 80

QS = 150

The measure of the angle formed by a secant and a tangent intersecting in the exterior of a circle is half the difference between the measures of the intercepted arcs.

This means that (150-80)/2 = mP

mP = 35 degrees

Hope this helps!

The independent probability of event B is 0.60 or 60% rounded to two decimal places.

To find the probability of event B (p(B)), the formula for the probability of the intersection of two independent events:

p(A and B) = p(A) × p(B)

Given that p(A) = 0.90 and p(A and B) = 0.54,  substitute these values into the formula:

0.54 = 0.90 × p(B)

p(B), divide both sides of the equation by 0.90:

p(B) = 0.54 / 0.90

p(B) = 0.60

To know more about decimal here

https://brainly.com/question/30958821

#SPJ4

Given: Radius of the wheel = 30 inches, Revolutions per minute = 401 rpmThe linear speed of the car in miles per hour can be calculated as follows:

Step 1: Convert the radius from inches to miles by multiplying it by 1/63360 (1 mile = 63360 inches).30 inches × 1/63360 miles/inch = 0.0004734848 milesStep 2: Calculate the distance traveled in one minute by the wheel using the circumference formula.Circumference = 2πr = 2 × π × 30 inches = 188.496 inchesDistance traveled in one minute = 188.496 inches/rev × 401 rev/min = 75507.696 inches/minStep 3: Convert the distance traveled in one minute from inches to miles by multiplying by 1/63360.75507.696 inches/min × 1/63360 miles/inch = 1.18786732 miles/minStep

4: Convert the distance traveled in one minute to miles per hour by multiplying by 60 (there are 60 minutes in one hour).1.18786732 miles/min × 60 min/hour = 71.2720392 miles/hour Therefore, the linear speed of the car is 71.3 miles per hour (rounded to the nearest tenth).Answer: 71.3

To know more about The radius of the wheel
Visit https://brainly.com/question/33382741
#SPJ11

The radius of the wheel on a car is 30 inches. If the wheel is revolving at 401 revolutions per minute, The linear speed of the car is approximately 19.2 miles per hour.

To find the linear speed of the car in miles per hour, we need to calculate the distance traveled in one minute and then convert it to miles per hour. Here's how we can do it step by step:

Calculate the circumference of the wheel:

The circumference of a circle is given by the formula

C = 2πr

where r is the radius of the wheel.

In this case, the radius is 30 inches, so the circumference is

C = 2π(30)

   = 60π inches.

Calculate the distance traveled in one revolution:

Since the circumference represents the distance traveled in one revolution, the distance traveled in inches per revolution is 60π inches.

Calculate the distance traveled in one minute:

Multiply the distance traveled in one revolution by the number of revolutions per minute.

In this case, it is 60π inches/rev * 401 rev/min = 24060π inches/min.

Convert the distance to miles per hour:

There are 12 inches in a foot, 5280 feet in a mile, and 60 minutes in an hour.

Divide the distance traveled in inches per minute by (12 * 5280) to convert it to miles per hour.

The final calculation is (24060π inches/min) / (12 * 5280) = (401π/66) miles/hour.

Approximating π to 3.14, the linear speed of the car is approximately (401 * 3.14 / 66) miles per hour, which is approximately 19.2 miles per hour.

Learn more About linear speed from the given link

https://brainly.com/question/29345009

#SPJ11