I just need part D) For A I got: Mean 114 and SD 114.4018For B I got: H0 : µd = 0. Ha : µd ≠ 0 t = 3.15117. P-value (two-tailed) = 0.011715472. and DF= 9For C I got: 95% C.I for diff = ( 32.16177, 195.838230) 7.40 Potential insurance fraud? Insurance adjusterse concerned about the high estimates they are receivingarefrom Jocko's Garage. To see if the estimates areunreasonably high, each of 10 damaged cars was taken toJocko's and to another garage and the estimates (indollars) were recorded. Here are the results: JOCKO23155012501250 1300 12501CarJocko's 1410OtherCar67Jocko's 1520 1750Other1575 1600413001200590095089103600 2250 28403380 2125 2600(a) For each car, subtract the estimate of the othergarage from Jocko's estimate. Find the mean and thestandard deviation for this difference.(b) Test the null hypothesis that there is no differencebetween the estimates of the two garages. Be sure tospecify the null and alternative hypotheses, the teststatistic with degrees of freedom, and the P-value. Whatdo you conclude using the 0.05 significance level?(c) Construct a 95% confidence interval for the differencein estimates.(d) The insurance company is considering seekingrepayment from 1000 claims filed with Jocko's last year.Using your answer to part (c), what repayment wouldyou recommend the insurance company seek? Explainyour answer.

Given that insurance adjusters are concerned about the high estimates they are receiving from…

(d) The insurance company is considering seeking repayment from 1000 claims filed with Jocko's last year. Using your answer to part (c), what repayment would you recommend the insurance company seek? Explain your answer.

(d) The insurance company is considering seeking repayment from 1000 claims filed with Jocko's last year. Using your answer to part (c), what repayment would you recommend the insurance company seek? Explain your answer.

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

I just need part D)

For A I got: Mean 114 and SD 114.4018

For B I got: H₀ : µ_d = 0. H_a : µ_d ≠ 0 t = 3.15117.

P-value (two-tailed) = 0.011715472. and DF= 9

For C I got: 95% C.I for diff = ( 32.16177, 195.838230)

7.40 Potential insurance fraud? Insurance adjusters
e concerned about the high estimates they are receiving
are
from Jocko's Garage. To see if the estimates are
unreasonably high, each of 10 damaged cars was taken to
Jocko's and to another garage and the estimates (in
dollars) were recorded. Here are the results: JOCKO
2
3
1550
1250
1250 1300 1250
1
Car
Jocko's 1410
Other
Car
6
7
Jocko's 1520 1750
Other
1575 1600
4
1300
1200
5
900
950
8
9
10
3600 2250 2840
3380 2125 2600
(a) For each car, subtract the estimate of the other
garage from Jocko's estimate. Find the mean and the
standard deviation for this difference.
(b) Test the null hypothesis that there is no difference
between the estimates of the two garages. Be sure to
specify the null and alternative hypotheses, the test
statistic with degrees of freedom, and the P-value. What
do you conclude using the 0.05 significance level?
(c) Construct a 95% confidence interval for the difference
in estimates.
(d) The insurance company is considering seeking
repayment from 1000 claims filed with Jocko's last year.
Using your answer to part (c), what repayment would
you recommend the insurance company seek? Explain
your answer.

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