The following data corresponds to the weekly registration of 10 different companies, in the specified items. The data is recorded in dollars. a) Make a 95% confidence estimate for the expected investment in each of those items. Write down the interpretation of the result. b) What is the estimation error in each case? c) According to the results of subparagraph a), in which item are you expected to have a greater investment?
The following data corresponds to the weekly registration of 10 different companies, in the specified items. The data is recorded in dollars. a) Make a 95% confidence estimate for the expected investment in each of those items. Write down the interpretation of the result. b) What is the estimation error in each case? c) According to the results of subparagraph a), in which item are you expected to have a greater investment?
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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The following data corresponds to the weekly registration of 10 different companies, in the specified items. The data is recorded in dollars.
- a) Make a 95% confidence estimate for the expected investment in each of those items. Write down the interpretation of the result.
- b) What is the estimation error in each case?
- c) According to the results of subparagraph a), in which item are you expected to have a greater investment?

Transcribed Image Text:Company
1
2
3
4
5
6
7
8
9
10
Investment in
preventive
maintenance
800
1500
2000
1325
1400
225
784
3000
910
430
Expenses for
corrective
maintenance
500
200
100
700
1500
2000
15
200
1840
3200
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