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A professor obtains SAT scores and freshman GPA for a group of 15 college students with the hope that she can predict GPA using

kramer

The hypothesis test analyzes the null and alternative hypothesis of the

plausibility of a correlation between the SAT scores and GPA.

The hypothesis test that would be appropriate is a hypothesis test that checks that the slope of the regression line is not zero.

Reasons:

The data collected by the professor = The scores of the college students

The type of scores collected = SAT scores, and GPA scores

The test that would be appropriate for the example, is the test for the

existence of a significant linear relationship between the input variable

(the SAT scores) and the output variable (the GPA)

The test is known as the test for the slope of the regression line

The equation of the regression line is; Y = B₀ + B₁·X

Where;

Y = The value of the GPA score (The dependent variable)

X = The value of the SAT score (The independent variable)

The test aims to check that the value the slope of the regression line is

much different from zero, such that there exist a correlation.

Learn more about hypothesis test for linear regression here:

brainly.com/question/13938204

4 0

2 years ago

The ABC Company has a net income of $56,000, assets at the beginning of the year are $263,000 and assets at the end of the year

aleksandr82 [10.1K]

Answer:

19.4 %

Step-by-step explanation:

The formula for return on assets (ROA) is

ROA = Net income /Total assets × 100 %

Since assets vary, we use the average of the total assets over the period.

Calculate the average total assets

At beginning of year, total assets = $263 000

At end of year, total assets = $313 000

Average = (313 000 + 263 000)/2

Average = 576 000/2

Average = $288 000

===============

Calculate the ROA

Net income = $56 000

ROA = 56 000/288 000 × 100 %

ROA = 0.194 × 100 %

ROA = 19.4 %

The company’s return on assets is 19.4 %.

4 0

3 years ago

Read 2 more answers

Ja’ron collected data about the number of students participating in different types of after-school programs. The chart displays

Degger [83]

Answer:

A. Bar graph

Step-by-step explanation:

Since they are all different activities and don't relate you can put different bars to put the different activities and use the left to indicate the amount of students and grow the bar according to the amount of students in that activity; each bar stands for a different activity, the y-intercept is for the amount of students, the bar will grow 'up' according to the amount of students.

6 0

3 years ago

Angel paints three rooms with two gallons of paint. How many rooms can he paint with fifteen gallons of paint?

Vanyuwa [196]

Answer:

22 rooms

Step-by-step explanation:

If two gallons of paint covers 3 rooms then you need to divide 15 gallons of paint by 2 gallons of paint = 7.5 gallons of paint. then you need to multiply 7.5 gallons of paint by 3 rooms = 22.5..... so that means you can paint 22 full rooms.

6 0

3 years ago

If y varies directly as x and y = 36 when x = 4,what is the constant of variation?

Inessa05 [86]

Answer:

9

Step-by-step explanation:

Y ~ X

Y = KX

K = Y/X

K = 36/4

K = 9

7 0

3 years ago