5       5       5       6       7        List all possible samples of size n=3 that you can obtain from the raw data you reported in (1) above.  For each sample of size n=3 that you listed, compute the mean of the sample.  What is the mean of these sample means.  (Hint: there is a total of 10 ways to choose samples of size n=3 from the N=5 scores you report in (1).  So you should get 10 sample means -- one for each of the samples of size n=3 that you list.)

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.