Delays in discharges from immediate health care facilities create unnecessary risks of expenses for patients and their families. Discharge delays (in days) from two healthcare facilities are shown in the following table. Assume that these data represent SRSs from their respective populations and that the populations demonstrate no major departure from normality.

Facility A	12	9	13	16	7	19	20	16	15	14	12	16
facility B	7	10	13	15	9	15	12	16	8	9	6	12

a. Find the mean, median, variance and standard deviation of delays times for Facility A.

b. Find the mean, median, variance and standard deviation of delays times for Facility B.

c. Compare delays times in the facilities and test whether there was significant difference in mean delay times? Use alpha=0.05