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Author Question: Exhibit 10-6The management of a department store is interested in estimating the difference between ... (Read 74 times)

heatherbabydoll1

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on: Mar 25, 2023

Exhibit 10-6
The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card. You are given the following information.

 

 

Store's Card

Major Credit Card

Sample size

64

49

Sample mean

$140

$125

Population standard deviation

$10

$8


Refer to Exhibit 10-6. At 95% confidence, the margin of error is


◦

1.694


◦

3.32


◦

1.96


◦

15

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by heatherbabydoll1 on Mar 25, 2023

athenaheim

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Reply #1 on: Mar 25, 2023
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heatherbabydoll1

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Reply 2 on: Mar 25, 2023
Wow, this really help

sultansheikh

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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