I need help with:

A cultural competency test was administered to individuals from two different races, labeled 1 & 2.

You are to use the Mann-Whitney to see if there is a statistical difference in the scores of the two groups.

From the data at the bottom, I calculated the following

Alpha	0.050	1	Sample 1	n	71	Rank sum	5301	Mann-Whitney U	2864
Tails	2.000	2	Sample 2	n	79	Rank sum	6024	Mann-Whitney U	2745
N	150.000
Mann-Whitney U	2745.000		71
Mean	2804.500		79
Variance	70579.917		0
Standard Deviation	265.669
Z-Score	0.224
Critical value for Mann-Whitney U test statistic	2283.749
Significance (p-value)	0.823

I concluded that :

Not significant

Data:

Participant	Assessment Score	Race	M-W Rank 1	M-W Rank 2
1	199	2	0	114
2	174	1	4	0
3	180	2	0	14
4	199	2	0	114
5	183	1	30	0
6	183	2	0	30
7	185	2	0	39
8	195	1	95.5	0
9	176	1	7	0
10	183	1	30	0
11	200	2	0	123
12	180	1	14	0
13	197	2	0	105
14	185	1	39	0
15	178	1	9.5	0
16	188	2	0	58
17	183	2	0	30
18	180	2	0	14
19	188	1	58	0
20	187	1	48.5	0
21	181	2	0	21.5
22	187	2	0	48.5
23	185	1	39	0
24	195	2	0	95.5
25	188	2	0	58
26	173	1	1.5	0
27	206	1	147	0
28	174	2	0	4
29	206	2	0	147
30	176	2	0	7
31	178	1	9.5	0
32	206	2	0	147
33	180	2	0	14
34	180	1	14	0
35	206	2	0	147
36	180	2	0	14
37	206	1	147	0
38	180	1	14	0
39	206	2	0	147
40	181	1	21.5	0
41	183	1	30	0
42	206	1	147	0
43	183	1	30	0
44	183	1	30	0
45	188	2	0	58
46	183	1	30	0
47	192	1	76.5	0
48	190	1	67	0
49	183	1	30	0
50	185	2	0	39
51	190	2	0	67
52	192	2	0	76.5
53	185	2	0	39
54	187	1	48.5	0
55	174	2	0	4
56	176	2	0	7
57	187	1	48.5	0
58	187	2	0	48.5
59	173	1	1.5	0
60	188	1	58	0
61	192	2	0	76.5
62	188	2	0	58
63	188	2	0	58
64	193	2	0	86
65	195	2	0	95.5
66	195	2	0	95.5
67	195	1	95.5	0
68	197	2	0	105
69	197	2	0	105
70	197	1	105	0
71	197	1	105	0
72	199	2	0	114
73	199	2	0	114
74	199	2	0	114
75	199	2	0	114
76	192	1	76.5	0
77	199	2	0	114
78	193	2	0	86
79	197	2	0	105
80	181	2	0	21.5
81	187	2	0	48.5
82	202	1	131.5	0
83	197	1	105	0
84	192	1	76.5	0
85	204	1	139.5	0
86	204	2	0	139.5
87	181	1	21.5	0
88	192	2	0	76.5
89	200	1	123	0
90	202	1	131.5	0
91	192	1	76.5	0
92	193	2	0	86
93	202	1	131.5	0
94	190	2	0	67
95	200	1	123	0
96	204	2	0	139.5
97	195	1	95.5	0
98	185	1	39	0
99	187	2	0	48.5
100	193	1	86	0
101	181	2	0	21.5
102	181	1	21.5	0
103	181	2	0	21.5
104	181	2	0	21.5
105	185	2	0	39
106	185	2	0	39
107	185	2	0	39
108	187	1	48.5	0
109	187	2	0	48.5
110	187	2	0	48.5
111	188	1	58	0
112	188	1	58	0
113	190	1	67	0
114	190	2	0	67
115	190	1	67	0
116	190	1	67	0
117	190	2	0	67
118	190	1	67	0
119	192	1	76.5	0
120	192	2	0	76.5
121	192	2	0	76.5
122	193	2	0	86
123	193	1	86	0
124	193	2	0	86
125	193	1	86	0
126	193	2	0	86
127	195	1	95.5	0
128	195	2	0	95.5
129	195	2	0	95.5
130	195	2	0	95.5
131	197	1	105	0
132	197	2	0	105
133	199	1	114	0
134	199	1	114	0
135	200	2	0	123
136	200	1	123	0
137	200	1	123	0
138	200	1	123	0
139	200	2	0	123
140	200	2	0	123
141	202	2	0	131.5
142	202	1	131.5	0
143	202	1	131.5	0
144	202	1	131.5	0
145	202	2	0	131.5
146	204	2	0	139.5
147	204	1	139.5	0
148	204	1	139.5	0
149	204	2	0	139.5
150	204	1	139.5	0
			5301	6024