Please show the relevant formula and show the variables that go into the formula.

Ages of sample of student from day classes

17	17	18	18	18	19	19	19	19	20	20	20	20	20	20	20
20	20	21	21	21	21	21	22	22	22	23	23	24	24	25	31

Ages of sample of student from night classes

18	19	20	20	20	21	21	21	21	21	22	22	22	23	23	23
23	23	24	24	24	25	26	28	28	28	30	34	39	43	64

1. Make a box and whisker plot of each data set on the same scale. Include a written explanation of what the numbers on each chart indicate. Denote any outliers with the * symbol. Put the day classes above the axis and the night classes below the axis.
2. Make a double-sided stem and leaf plot to compare the two data sets.
3. Compute and compare measures of center and measures of variation for the two data sets.
4. Conduct a formal hypothesis test to test the claim (at the 5% significance level) that the mean age of students is higher in the night classes than it is in the day classes.