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

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). If the number 8.3 were changed to 1.5, what would happen to the sample mean, median, and standard deviation? State whether each would increase, decrease, or remain the same.

11.0; 9.5; 13.5; 7.2; 10.5; 8.3; 12.5