Find the number of persons per party has changed

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Reference no: EM131814457

Question: An exhaustive survey of all users of a wilderness park taken in 1960 revealed that the average number of persons per party was 2.6. In a random sample of 25 parties in 1985, the average was 3.2 persons with a standard deviation of 1.08.

a. Test the hypothesis that the number of persons per party has changed in the intervening years.

b. Determine the corresponding PROB-VALUE.

Reference no: EM131814457

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