Suppose the following data were collected from a sample of 5 car manufacturers relating monthly car sales to the number of dealerships and the quarter of the year. Use statistical software to find the following regression equation: SALESi= b0 + b1DEALERSHIPSi + b2 QUARTER1i+ b3QUARTER2i + b4QUARTER3i+ ei Is there enough evidence to support the claim that on average, car sales are higher in the 4th quarter than in the 2nd quarter at the 0.01 level of significance? If yes, write the regression equation in the spaces provided, rounded to two decimal places. Else, select "There is not enough evidence." Monthly SalesNumber of Dealerships1st Quarter (1 if Jan.-Mar., 0 otherwise)2nd Quarter (1 if Apr.-Jun., 0 otherwise)3rd Quarter (1 if Jul.-Sep., 0 otherwise)4th Quarter (1 if Oct.-Dec., 0 otherwise)85482410001013199100012138912 1 00013367718100019458822 1000821284010015040790100242714120100260324180100273495 220100654974001010148990010150188120010165463180010200443220010985314000120034690001250162120001306556180001389591220001 Selecting a checkbox will replace the entered answer value(s) with the checkbox value. If the checkbox is not selected, the entered answer is used. SALESi= _________ + __________ DEALERSHIPi+________QUARTER 1i, +______QUARTER2i +______ QUARTER3i +ei or chec the box if there is not enough evidence.

Answered: Is there enough evidence to support the…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter1: Functions

Section1.EA: Extended Application Using Extrapolation To Predict Life Expectancy

Problem 2EA

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Question

Suppose the following data were collected from a sample of 5 car manufacturers relating monthly car sales to the number of dealerships and the quarter of the year. Use statistical software to find the following regression equation:

SALESi= b0 + b1DEALERSHIPSi + b2 QUARTER1i+ b3QUARTER2i + b4QUARTER3i+ ei

Is there enough evidence to support the claim that on average, car sales are higher in the 4th quarter than in the 2nd quarter at the 0.01 level of significance? If yes, write the regression equation in the spaces provided, rounded to two decimal places. Else, select "There is not enough evidence."

Monthly Sales	Number of Dealerships	1st Quarter (1 if Jan.-Mar., 0 otherwise)	2nd Quarter (1 if Apr.-Jun., 0 otherwise)	3rd Quarter (1 if Jul.-Sep., 0 otherwise)	4th Quarter (1 if Oct.-Dec., 0 otherwise)
85482	4	1	0	0	0
101319	9	1	0	0	0
121389	12	1	0	0	0
133677	18	1	0	0	0
194588	22	1	0	0	0
82128	4	0	1	0	0
150407	9	0	1	0	0
242714	12	0	1	0	0
260324	18	0	1	0	0
273495	22	0	1	0	0
65497	4	0	0	1	0
101489	9	0	0	1	0
150188	12	0	0	1	0
165463	18	0	0	1	0
200443	22	0	0	1	0
98531	4	0	0	0	1
200346	9	0	0	0	1
250162	12	0	0	0	1
306556	18	0	0	0	1
389591	22	0	0	0	1