1. The duration of time from first exposure to HIV infection to AIDS diagnosis is called the incubation period. The incubation periods of a random sample of 7 HIV infected individuals is given below (in years): P"??? 12.0 10.5 13.5 12.5 9.5 6.3 7.2 Report the sample mean. Report the sample median. Report the sample standard deviation If the number 6.3 above were changed to 1.5, what would happen (increase, decrease, or remain the same) to the 1. sample mean? 2. sample median? Assume that these data are seven random observations taken from a larger population whose values are normally distributed. (even if this assumption makes little sense) Using this assumption, coupled with prior computations, estimate an interval that contains 95% of incubation time values in the population of HIV patients from which the sample was taken