A 95 percent confidence interval estimate for the

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Reference no: EM13603053

The management of a department store is interested to estimate the difference in the amount of money spent by female and male shoppers. You are given the following information.

	Female Shoppers	Male Shoppers
Sample size	64	49
Sample mean	$140	$125
Population standard deviation	$10	$8

A 95 percent confidence interval estimate for the difference between the average purchases of the customers using the two different credit cards is:

1. 11.68 to 18.32
2. 49 to 64
3. 8 to 10
4. 125 to 140

Reference no: EM13603053

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