(Answered) Question sharks return to the data in exercise is there

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Question: Sharks. Return to the data in Exercise. Is there good evidence that the mean length of sharks in the population that these sharks represent is greater than 15 feet?

Exercise: Sharks. Great white sharks are big and hungry. Here are the lengths in feet of 44 great whites:

(a) Make a stemplot with feet as the stems and 10ths of feet as the leaves. There are 2 outliers, one in each direction. These won't change much but will increase the standard deviation s.

(b) Give a 90% confidence interval for the mean length of all great white sharks. (The interval may be too wide due to the influence of the outliers on s.)

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