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Find the mean length of all great white sharks

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Reference no: EM131640428

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:

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(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.)

(c) What do we need to know about these sharks in order to interpret your result in (b)?

Reference no: EM131640428

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