2. In a study of the demand for life insurance, Executive Insurers, Inc., is examining thefactors that sffect the amount of life insurance held by executives. The following data onthe amount of insurance held by executives. The following data on the amount ofinsurance and annual incomes of a random sample of 12 executives were collected.ObservationAmount of Life InsuranceAnnual Income{x $1,000){x $1.000)190501808422574210115150104150987805813510215010410150108118085125808a. Test the hypothesis that there is no relationship (i.e., B = 0) between the variables.b. Calculate the coefficient of determination.c. Perform an analysis of variance on the regression, including an F-test of the overallsignificance of the results.d. Determine the best estimate, based on the regression model, of the amount of lifeinsurance held by an executive whose annual income is $80,000. Construct anspproximate 95-percent prediction interval.

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In a study of the demand for life insuranoe, Executive Insurers, Inc., is examining the factors that affect the amount of life insurance held by executives. The following data on the amount of insurance held by executives. The following data on the amount of insuranoe and annual inoomes of a random sample of 12 executives were collected. ОБservation Amount of Life Insurance Annual Income (x $1.000) (x $1.000)

In a study of the demand for life insuranoe, Executive Insurers, Inc., is examining the factors that affect the amount of life insurance held by executives. The following data on the amount of insurance held by executives. The following data on the amount of insuranoe and annual inoomes of a random sample of 12 executives were collected. ОБservation Amount of Life Insurance Annual Income (x $1.000) (x $1.000)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

2. In a study of the demand for life insurance, Executive Insurers, Inc., is examining the
factors that sffect the amount of life insurance held by executives. The following data on
the amount of insurance held by executives. The following data on the amount of
insurance and annual incomes of a random sample of 12 executives were collected.
Observation
Amount of Life Insurance
Annual Income
{x $1,000)
{x $1.000)
1
90
50
180
84
225
74
210
115
150
104
150
98
7
80
58
135
102
150
104
10
150
108
11
80
85
12
58
08
a. Test the hypothesis that there is no relationship (i.e., B = 0) between the variables.
b. Calculate the coefficient of determination.
c. Perform an analysis of variance on the regression, including an F-test of the overall
significance of the results.
d. Determine the best estimate, based on the regression model, of the amount of life
insurance held by an executive whose annual income is $80,000. Construct an
spproximate 95-percent prediction interval.

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