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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. Assume the samples were selected randomly. Major Credit Store's Card Card Sample size 64 49 Sample mean Population standard deviation $140 $125 $10 $8 Refer to Exhibit 10-6. At 95% confidence, the margin of error 13 1.694 3.32 1.96 15 ✓✓

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. Assume the samples were selected randomly. Major Credit Store's Card Card Sample size 64 49 Sample mean Population standard deviation $140 $125 $10 $8 Refer to Exhibit 10-6. At 95% confidence, the margin of error 13 1.694 3.32 1.96 15 ✓✓

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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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. Assume the samples were selected randomly. Major Credit Store's Card Card Sample size 64 49 Sample mean Population standard deviation $140 $125 $10 $8 Refer to Exhibit 10-6. At 95% confidence, the margin of error 13 1.694 3.32 1.96 15 ✓✓
Transcribed Image Text: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. Assume the samples were selected randomly. Major Credit Store's Card Card Sample size 64 49 Sample mean Population standard deviation $140 $125 $10 $8 Refer to Exhibit 10-6. At 95% confidence, the margin of error 13 1.694 3.32 1.96 15 ✓✓
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