A camp director is interested in the mean number of letters each child sends during...
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A camp director is interested in the mean number of letters each child sends during his or her camp session The population standard deviation is known to be 2 5 A survey of 20 campers is taken The mean from the sample is 7 9 Does the evidence show that campers on average send fewer than 10 letters during the camp session What Procedure would you use Question Help Post to foru Submit Question Jump t Select an answer 1 Proportion Z Test 1 Proportion Z Interval T Test 2 Sample T Interval
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