A real estate agent has collected a random sample of 75 houses that were recently sold in a suburban community. She is particularly interested in comparing the appraised value and recent selling price of the houses in this particular market. Using this sample data below, find a 95% confidence interval for the mean difference between the appraised values and selling prices of the houses sold in this suburban community. Interpret the confidence interval for the real estate agent.

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House	Value	Price
1	119.37	121.87
2	148.93	150.25
3	130.39	122.78
4	135.70	144.35
5	126.30	116.20
6	137.08	139.49
7	123.49	115.73
8	150.83	140.59
9	123.48	120.29
10	132.05	147.25
11	148.21	152.26
12	139.53	144.80
13	114.34	107.06
14	140.04	147.47
15	136.01	135.12
16	140.93	140.24
17	132.42	129.89
18	118.30	121.14
19	122.14	111.23
20	149.82	145.14
21	128.91	139.01
22	134.61	129.34
23	121.99	113.61
24	150.50	141.05
25	142.87	152.90
26	155.55	157.79
27	128.50	135.57
28	143.36	151.99
29	119.65	120.53
30	122.57	118.64
31	145.27	149.51
32	149.73	146.86
33	147.70	143.88
34	117.53	118.52
35	140.13	146.07
36	136.57	135.35
37	130.44	121.54
38	118.13	132.98
39	130.98	147.53
40	131.33	128.49
41	141.10	141.93
42	117.87	123.55
43	160.58	162.03
44	151.10	157.39
45	120.15	114.55
46	133.17	139.54
47	140.16	149.92
48	124.56	122.08
49	127.97	136.51
50	101.93	109.41
51	131.47	127.29
52	121.27	120.45
53	143.55	151.96
54	136.89	132.54
55	106.11	114.33
56	137.54	141.32
57	134.33	83.76
58	127.59	118.20
59	137.44	140.20
60	114.09	113.55
61	145.46	156.52
62	141.90	137.35
63	116.34	110.61
64	149.20	153.69
65	141.81	153.33
66	116.44	111.95
67	137.74	143.46
68	144.70	142.13
69	149.66	155.46
70	118.17	135.44
71	137.66	127.30
72	119.70	113.77
73	143.12	141.11
74	129.91	130.08
75	141.78	139.35