February 23, 2017

Homework Help: basic statistics for the behavioral sciences

Posted by jan on Monday, September 12, 2011 at 12:53am.

on a standard test of motor coordination, a sports psychologist found that the population of a average bowlers had a mean scores of 24,with a standard deviation of 6. she tested a random sample of 30 bowling alley and found a sample mean of 26, a second random sample of 30 bowlers at Ethel's bowling alley had a mean of 18. using the criterion of p=.05 and both tails of the sampling distribution what should she conclude about each sample's representativness of the population of average bowlers?

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