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Question
Exhibit 10-10A local department store is studying the shopping habits of its customers. They think that the longer customers spend in the store the more they buy. Their study resulted in the following information regarding the amount of time women and men spent in a store.
| Women | Men | |
| Mean | 6 minutes 12 seconds | 5 minutes 46 seconds |
| Population Standard deviation | 4 seconds | 5 seconds |
| Sample size | 32 | 50 |
a. 1 minute 26 seconds
b. 34 seconds
c. 26 seconds
d. 13 seconds
Answer
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