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 ShoppersSample size 64 49Sample mean $140 $125Population standard deviation $10 $8A 95 percent confidence interval estimate for the difference between the average purchases of the customers using the two different credit cards is:A) 49 to 64
B) 11.68 to 18.32
C) 125 to 140
D) 8 to 10
B
Business
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Errors that occur during data collection may be attributed to fieldworkers or to respondents
Indicate whether the statement is true or false
Business
You should begin to prepare an index by identifying _________________
a. how many pages long the index needs to be b. what kind of document you are writing c. key words and concepts d. the method of circulation you will use
Business