Question: Given the regression equation Y = -50 + 12X a. What is the change in Y when X changes by +3? b. What is the

Given the regression equation
Y = -50 + 12X
a. What is the change in Y when X changes by +3?
b. What is the change in Y when X changes by -4?
c. What is the predicted value of Y when X = 12?
d. What is the predicted value of Y when X = 23?
e. Does this equation prove that a change in X causes a change in Y?

Step by Step Solution

★★★★★

3.47 Rating (170 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Given the regression equation a Y changes by 3... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

488-M-S-L-R (2312).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

What is the change in wavelength when monochromatic X-rays are scattered by electrons ons through an angle of 30?

Given the regression equation Y = 100 + 21X a. What is the change in Y when X changes by +5? b. What is the change in Y when X changes by -7? c. What is the predicted value of Y when X = 14? d. What...

Given the regression equation Y = 100 + 10X a. What is the change in Y when X changes by +3? b. What is the change in Y when X changes by -4? c. What is the predicted value of Y when X = 12? d. What...

Given the regression equation Y = -50 + 12X a) What is the change in Y when X changes by +3? b) What is the change in Y when X changes by -4? c) What is the predicted value of Y when X = 12? d) What...

An article on estimating 28-day strength of concrete considered regressing y = 28-day standard-cured strength (psi) against x = accelerated strength (psi). Suppose the equation of the true regression...

Given the regression equation Y = 100 + 21X a) What is the change in Y when X changes by +5? b) What is the change in Y when X changes by -7? c) What is the predicted value of Y when X = 14? d) What...

Zhi plays a game in which she can purchase a ticket and it has several chances, or "catches" to win money. The table below shows the probability of winning at each stage, and how much money the...

David was interested about the performance of a sports car, but was confused about scatterplots. Tasha collected some performance data from the internet about the car's engine. Specifically, she...

1) The regression equation: y^= 4 + 1.2x was calculated from a sample. It is part of a regression model that has been developed in order to predict the score in an end-of-year exam based on the score...

WorldCom committed financial fraud around the turn of the century. Explain the nature of its fraud, and why this fraud is so brilliant (from a fraudster's point of view). Hint: compare WorldCom's...

The parent company owns 70% of the subs common stock. On January 1, 2021, parent company sold land to sub for $450,000. The land had originally cost Parent $356,000. On January 1, 2022, Sub purchased...

? _ _ _ _ _ _ _ a r e e s t i m a t e s o f a f i r m ' s f u t u r e s a l e s , i n c o m e , e x p e n s e s , a n d c a p i t a l e x p e n d i t u r e s b a s e d o n i t s p a s t p e r f o r m...

In satisfying himself that the contingency plan will be kept up to date and appropriate, the auditor will typically ensure all of the following except: a) The master plan is kept secure. b) Executive...

Suppose a random sample of n = 25 measurements is selected from a population with mean p and standard deviation . For each of the following values of and , give the values of and . a. = 10, = 3...

Suppose a random sample of n measurements is selected from a population with mean = 100 and variance 2 = 100. For each of the following values of n, give the mean and standard deviation of the...

A random sample of n = 64 observations is drawn from a population with a mean equal to 20 and a standard deviation equal to 16. a. Give the mean and standard deviation of the (repeated) sampling...

Freight Train Construction is analyzing a proposed project. The company expects to sell 1 , 4 0 0 units, + - 2 percent. The expected variable cost per unit is $ 2 1 0 and the expected fixed costs are...

A research institute reports that 69% of workers reported that theyand/or their spouse had saved some money for retirement. Complete parts a and b below. a.If a random sample of 40 workers istaken,...

Werth Company produces tie racks. The estimated fixed costs for the year are $288,000, and the estimated variable costs per unit are $14. Werth expects to produce and sell 60,000 units at a price of...