Mathematics, 21.09.2021 05:40 mzyjohnson47

in a sample 49 adolescents who served as the subject in an immunologic study, one variable of interest was the diameter of skin test reaction to an antigen. the sample mean & standard deviation were 21 & 11mm erythema, respectively. can it be concluded from this data that the population mean is less than 30? Let alpha=0.05. also find the p-value of the test.

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