Customers Ratings Study Questions

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The data attached contains information on customers’ ratings of your product (CustRate), on a scale of 1 to 100, along with demographic information. The demographic information includes: income (Inc), age (Age), education (Educ), and marital status (Marr). The last variable equals one if the respondent is married and zero otherwise. Assume the data-generating process can be written as:

CustRatei=α+β1Inci+β2Agei+β3Educi+β4Marri+Ui.

Test the hypothesis that income has no impact on customer rating, using a confidence level of 95%. Be sure to provide the reasoning behind your result.
Test the hypothesis that β2=0.05, using a confidence level of 90%. Be sure to provide the reasoning behind your result.
Build a 95% confidence interval for the impact of education on customer rating. Be sure to provide the reasoning for your result.
Build a 95% confidence interval for the impact of being married on customer rating. Be sure to provide the reasoning for your result.
Predict the change in customer rating if a customer’s income increases by $10,000, with no change in age, education, or marital status

Sheet1

CustRate	Inc	Age	Educ	Marr
28	58402	43	18	0
79	89893	83	17	1
35	58034	51	13	1
35	62843	40	13	0
36	80854	56	13	0
41	86470	65	18	1
43	74518	40	19	1
35	55958	44	14	0
18	50279	41	12	1
46	102499	57	20	0
17	62816	43	18	0
36	79303	76	16	0
83	106960	77	16	0
56	89134	76	15	0
8	39297	35	14	1
58	93130	55	19	1
48	70350	55	16	0
58	92032	67	18	1
49	78536	76	11	1
35	55760	46	13	1
45	48631	45	13	0
50	48622	38	14	1
86	102460	80	16	0
32	38090	32	11	0
44	60977	44	16	1
49	65962	39	19	1
44	47447	37	10	1
16	52479	47	16	1
45	51238	55	10	0
50	79284	82	11	1
52	73283	41	14	0
53	78156	64	13	0
26	42190	42	10	0
58	90846	82	15	1
75	88087	71	12	0
54	77947	79	12	1
46	73839	72	10	1
67	79504	70	17	1
79	103551	71	20	0
55	81651	73	11	1
38	76964	73	11	0
41	92002	77	16	1
56	92630	65	17	0
38	81637	62	13	0
41	59079	60	10	0
47	53481	33	13	0
33	61981	31	18	0
22	47444	34	11	0
45	62345	61	10	1
59	90636	71	11	0
39	66924	47	16	0
6	43472	34	14	0
36	63223	41	19	0
83	102024	83	16	1
60	91859	50	20	1
50	51800	32	17	1
68	74147	46	20	0
41	49001	40	15	1
21	63189	52	12	0
45	65693	40	20	1
59	82952	81	14	0
23	65459	37	19	0
47	73623	67	11	1
46	58703	53	10	0
39	75724	52	14	0
69	89721	79	17	1
84	92167	69	18	1
50	84185	75	15	0
45	62827	41	16	0
66	73275	54	15	0
81	97682	73	11	0
68	91359	84	10	1
68	104446	81	16	1
15	32026	38	10	0
24	63546	49	16	1
37	61179	38	17	1
50	71387	56	19	0
64	100364	71	18	1
24	37724	28	10	1
68	84308	60	12	1
38	61819	50	16	1
20	34068	29	13	1
28	54646	30	17	1
57	84758	59	12	1
41	50313	30	19	0
62	73319	64	12	0
19	52824	36	15	0
59	96290	63	20	1
59	94847	82	10	0
73	106430	83	20	1
68	94519	72	17	1
60	79568	44	20	0
33	70571	65	13	1
42	77195	56	18	0
61	94754	67	13	0
57	63482	60	12	1
36	54621	40	18	1
58	98958	83	16	1
17	62514	41	19	1
58	94638	66	12	1
59	77590	65	16	1
56	62972	52	18	1
34	75715	50	18	1
50	66851	48	14	0
26	52452	48	10	1
61	120595	76	16	0
55	81983	79	13	1
41	66972	52	15	0
28	38026	35	17	1
40	93236	76	18	0
39	98003	75	17	1
26	43014	42	12	1
34	57142	41	13	0
55	89995	74	18	1
32	68975	50	16	0
53	76995	78	15	0
31	41771	32	13	1
75	107119	82	17	0
36	79423	60	15	1
33	52455	37	11	0
43	74186	53	18	1
50	88230	76	13	1
49	77681	68	14	0
53	81907	60	20	0
32	74105	53	11	1
71	103295	82	17	1
43	62365	41	20	0
24	50388	34	17	0
29	73826	43	18	0
50	96867	76	20	0
66	81473	59	15	0
46	84895	71	18	1
14	50703	29	17	1
22	50514	35	19	1
65	91143	76	17	1
33	60094	51	11	1
34	72363	40	18	0
55	61569	65	10	1
61	111907	80	13	0
19	50860	39	13	0
69	81328	63	20	0
55	76263	43	18	0
39	52869	34	17	1
76	92165	79	12	1
41	60211	55	14	1
74	88320	74	19	0
49	73401	71	12	0
29	41098	28	18	1
45	46355	52	10	0
64	59752	52	10	1
52	86557	62	13	1
25	50342	46	14	0
61	107203	74	18	0
53	50377	31	14	1
24	72087	57	12	1
27	68073	45	17	1
39	68824	62	10	1
61	84953	42	20	1
76	88289	77	15	0
42	54169	42	20	1
40	47445	50	12	0
64	79659	67	14	0
59	87149	53	20	0
58	85160	65	16	0
86	115642	79	19	0
30	26671	30	10	0
65	99436	83	14	1
57	99677	80	17	0
50	75679	45	20	1
64	86013	76	11	1
49	66922	49	20	0
51	95313	62	15	0
60	102551	69	19	0
47	71334	34	19	0
67	68982	48	16	0
70	89113	74	15	0
68	73545	61	14	1
49	92819	79	11	1
49	78207	84	13	0
46	83274	62	18	0
33	31363	28	11	0
33	57397	48	14	0
45	95774	81	19	0
37	57384	44	19	1
42	63775	63	10	1
80	109560	85	17	0
72	98326	60	20	1
54	73643	64	15	1
48	89103	59	16	0
58	94844	56	17	0
30	65985	39	17	1
56	77875	76	10	0
58	69793	67	13	0
57	74239	42	20	0
55	100675	70	19	1
55	83572	56	17	1
77	99332	63	20	1
44	73084	59	14	0
73	108769	82	15	1
41	59581	45	12	0
54	70716	69	13	0
56	94821	78	14	0
33	62336	37	14	0
62	95083	69	20	0
43	66276	36	19	1
70	108664	79	18	0
56	90094	62	16	1
62	93481	78	20	0
42	83496	62	19	0
39	62503	54	11	1
66	84253	83	17	0
79	105591	76	19	0
36	67780	57	13	1
80	124010	83	19	0
59	74465	63	17	0
45	50544	31	18	0

Sheet2

Sheet3

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