Statistical Laboratory Question

By USING RStudio ONLY to answer the question

Question 10

Studies indicate that single male investors tend to take the most risk, whereas married female investors tend to be conservative. This raises the question, "Which does best?". The risk-adjusted returns for single and married men, and for single and married women were recorded and stored in columns A through D, respectively.

Column A Column B Column C Column D

Single Men	Married Men	Single Women	Married Women
10.91	18.18	15.1	9.53
5.82	2.47	17.46	-2.11
14.2	15.68	-11.28	21.79
4.42	16.85	25.76	30.16
10.54	5.81	18.24	39.09
-10.6	15.57	12.34	3.23
13.07	26.08	25.93	11.09
8.75	11.97	2.28	19.03
3.06	23	15.03	2.04
-7.95	9.35	3.54	4.26
11.86	15.21	4.8	13.92
3.75	16.39	-0.99	15.87
-12.26	22.94	6.19	17.33
1.57	3.74	24.88	16.78
19.47	13.34	13.23	6.15
7.11	36.05	18.99	19.37
4.57	14.73	7.26	28.38
30.11	5.56	29.9	22.18
4.11	-1.9	8.58	7.69
15.47	24.46	12.93	11.94
2.17	19.96	-19.11	23.02
1.39	15.34	20.29	5.54
-7.11	9.18	-11.38	-1.03
17.25	21.25	5.49	-0.37
12.95	14	19.94	24.58
8.71	16.29	-4.23	13.26
7.05	10.81	29.35	7.29
-4.09	34.57	-1.68	17.67
-0.84	6.89	-14.6	22.78
0.72	-10.92	7.2	5.77
-3.99	10.13	12.13	10.81
0.96	0.38	19.83	2.09
-10.57	4.43	0.99	32.16
5.01	1.1	19.27	29.22
-2.14	22.07	11.14	16.62
11.57	23.75	-7.81	23.98
5.15	13.64	14.98	18.3
15.95	21.12	21.12	20.28
13.1	9.61	-4.5	8.81
16.88	16.45		21.43
-14.43	12.88		7.94
19.8	36.95		18.99
-4.95	6.21		12.85
15.76	15.25		23.01
9.95	0.52		14.64
8.98	13.43		-3.04
22.41	16.32		6.87
	-2.02		6.59
	15.58		18.39
	24.84		9.64
	11.54		14.02
	24.72		8.37
	19.57		10.27
	5.33		16.28
	30.04		3.83
	6.77		17.49
	13.92		20.46
	29.14		23.96
	11.05		29.1
	5.25		10.91
	24.7		-11.99
	13.12		24.02
	22.05		9.35
	17.46		14.98
	21.11		14.51
	18.87		19.44
	30.77		31.05
	34.66		40.26
	15.55		14.09
	7.66		14.39
	21.41		40.9
	16.01		13.35
	9.52		17.76
	9.13		17.96
	-7.32		24.87
	26.26		7.61
	16.42		12.25
	31.69		16.01
	10.04		18.76
	8.94		6.03
	-1.59		17.8
	17.65		12.93
	20.56		29.26
	2.83		18.71
	24.79		14.3
	13.78		20.69
	-4.47
	3.95
	-1.84
	14.15
	3.1
	14.41
	4.75
	3.96
	30.02
	6.7
	-5.79
	6.26
	15.2
	8.68
	-5.88
	21.57
	18.62
	2.17
	29.8
	12.38
	32.18
	16.36
	-2.34
	13.57
	17.33
	18.78

(a) Perform a parametric analysis to determine whether differences exist among four groups of investor. (b) Perform a non-parametric analysis to determine whether differences exist among four groups of investor. (c) Compare the results obtained in parts (a) and (b)