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The time from first exposure to HIV infection to AIDS diagnosis is called the incubation period....

The time from first exposure to HIV infection to AIDS diagnosis is called the incubation period. The incubation periods of a random sample of 14 HIV infected individuals is given below (in years): 12.0 10.5 5.2 9.5 6.3 13.1 13.5 12.5 10.7 7.2 14.9 6.5 8.1 7.9

a. Calculate the 95% confidence interval for the population mean.

b. What 2 assumptions are required for the confidence interval to be valid and how do you check each assumption?

Math   Statistics-And-Probability   
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