The mean and standard deviation for the quality point


The mean and standard deviation for the quality point averages of a random sample of 36 college seniors are calculated to be 2.6 and 0.3, respectively. How large a sample is required if we want to be 95% confident of the population mean is off by less than 0.05? (hint use what is given to estimate what is not given)

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Basic Statistics: The mean and standard deviation for the quality point
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