The prices of two competitive companies (Company I and Company II) need to be studied in order to have a comparative analysis between the two companies. The following prices data have been obtained for these two types of companies from a town market: Company I 15 Company II 17 The sample size The sample mean sample 33.4 32.4 The standard 1.3 1.5 deviation
The prices of two competitive companies (Company I and Company II) need to be studied in order to have a comparative analysis between the two companies. The following prices data have been obtained for these two types of companies from a town market: Company I 15 Company II 17 The sample size The sample mean sample 33.4 32.4 The standard 1.3 1.5 deviation
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![The prices of two competitive companies (Company I and Company II) need to be studied in order to have a
comparative analysis between the two companies. The following prices data have been obtained for these two
types of companies from a town market:
Company I
15
Company II
17
The sample size
The sample mean
sample
33.4
32.4
The
standard
1.3
1.5
deviation
Assuming both populations are approximately normal with equal variances, construct a 93% confidence
interval for the difference between the true mean prices of two companies.
O a. 1 + 0.822
O b. 1 + 0.938
O C. 1 + 0.848
O d. 1 ± 1.020
O e. 1 + 0.904](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F36e3f51d-1d75-4f52-bd2a-c88403810454%2F4efd5b13-029b-4c85-b776-f3b8c448bc68%2F1htdaye_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The prices of two competitive companies (Company I and Company II) need to be studied in order to have a
comparative analysis between the two companies. The following prices data have been obtained for these two
types of companies from a town market:
Company I
15
Company II
17
The sample size
The sample mean
sample
33.4
32.4
The
standard
1.3
1.5
deviation
Assuming both populations are approximately normal with equal variances, construct a 93% confidence
interval for the difference between the true mean prices of two companies.
O a. 1 + 0.822
O b. 1 + 0.938
O C. 1 + 0.848
O d. 1 ± 1.020
O e. 1 + 0.904
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