Dependent variable is PART (second column) and independent variable is TVEXP (third column).

Examine the relationship between expenditures on advertisements for physical exercise in schools (TVEXP) and percentage of subsequent student participants (PART) from 20 districts.

1.Determine the least-squares line of PART (dependent variable) on TVEXP (independent variable). Draw plot using SAS or R code.

2. Are any of the assumptions for straight-line regression clearly not satisfied in this data?

3. Test the null hypothesis that the true slope is 0; Interpret your result.

ID	PART	TVEXP
1	35.4	28.5
2	58.2	48.3
3	46.1	40.2
4	45.5	34.8
5	64.8	50.1
6	52	44
7	37.9	27.2
8	48.2	37.8
9	41.8	27.2
10	54	46.1
11	40.8	31.3
12	61.9	50.1
13	36.5	31.3
14	32.7	24.8
15	53.8	42.2
16	24.6	23
17	31.2	30.1
18	42.6	36.5
19	49.6	40.2
20	56.6	46.1

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