Column1	Column2	Column3
Date	High Temperature	Low Temperature
Year 2016
(F)	(F)
20-Sep	91.9	75
21-Sep	91	75.9
22-Sep	90	75
23-Sep	89.1	75.9
24-Sep	89.1	75.9
25-Sep	89.1	75
26-Sep	88	75.9
27-Sep	84.9	73
28-Sep	91.9	72
29-Sep	91.9	77
30-Sep	91	75
1-Oct	88	73.9
2-Oct	91	77
3-Oct	91	77
4-Oct	91	78.1
5-Oct	91	79
6-Oct	87.1	77
7-Oct	91	80.1
8-Oct	91.9	80.1
9-Oct	90	78.1
10-Oct	86	75
11-Oct	87.1	77
12-Oct	87.1	75
13-Oct	88	77
14-Oct	88	78.1
15-Oct	88	75
16-Oct	87.1	75.9
17-Oct	87.1	79
18-Oct	88	75
19-Oct	88	77
20-Oct	84.9	73
21-Oct	87.1	72
22-Oct	82	70
23-Oct	82.9	66.9
24-Oct	82.9	70
25-Oct	82	72
26-Oct	86	71.1
27-Oct	84.6	71.5
28-Oct	81	71.3
29-Oct	81	75
30-Oct	82	75
31-Oct	82	75
1-Nov	83.8	70.5
2-Nov	83.7	70.3
3-Nov	83.5	70.1
4-Nov	83.4	70
5-Nov	83.2	69.8
6-Nov	83.1	69.6
7-Nov	82.9	69.4
8-Nov	82.8	69.2
9-Nov	82.6	69.1
10-Nov	82.5	68.9
11-Nov	82.3	68.7
12-Nov	82.2	68.6
13-Nov	82	68.4
14-Nov	81.9	68.3
15-Nov	81.7	68.1
16-Nov	81.6	68
17-Nov	81.4	67.8
18-Nov	81.3	67.7
19-Nov	81.2	67.5
20-Nov	81	67.4

1. Prepareaspreadsheetwiththreecolumns:Date,HighTemperature,andLowTemperature.Listthepast60daysforwhichdataisavailable.

1. Prepare a histogram for the data on high temperatures and comment on the shape of the distribution as observed from these graphs.

1. Calculate and S.

1. What percentage of the high temperatures are within the interval S to + S?

1. What percentage of the high temperatures are within the interval 2S to + 2S?

1. How do these percentages compare to the corresponding percentages for a normal distribution (68.26% and 95.44%, respectively)?

1. Repeat Parts 2 to 6 for the minimum temperatures on your spreadsheet.

1. Would you conclude that the two distributions are normally distributed? Why or why not?