I have simulated some data based on my understanding of the North American curry market in relation to price, advertising budget, how far away people live from the nearest retailer that might stock my curry, and what country people reside in. Of particular interest to me is whether Canadians and Americans feel differently about curry.

- Build a model to predict sales. Include your model results and explain your process.

- I believe that US consumers respond more to changes in Ad_Budget than do Canadians. Conduct the most powerful test you can to see if this is the case. Briefly explain the test and your results (i.e. state the null, alternative, the p-value of the result and what it means.)

- Now conduct a Chow test to determine if Canadians are different from Americans.Briefly explain these results, particularly in light of your test above.

Data set is uploaded and below.

Obs	Sales	Ad_Budget	Price	Distance	Country
1	19103.64	362.86	11.68	6	US
2	4255.801	75.25	9.42	20	US
3	20508.34	396.63	6.68	21	US
4	18261.58	356.56	9.61	18	US
5	17401.91	321.13	9.56	24	US
6	20996.89	394.26	10.85	5	US
7	18581.75	386.44	11.56	12	CA
8	17574.67	329.45	9.07	12	US
9	27028.05	543.3	7.74	18	CA
10	16761.74	342.97	7.55	18	CA
11	14729.46	270.56	12.53	14	US
12	16289.81	303.27	8.4	9	CA
13	10120.87	187.13	14.49	24	US
14	14054.52	287.28	12.24	18	CA
15	12582.93	268.7	9.85	20	CA
16	11296.93	201.38	9.4	12	US
17	11714.96	227.15	11.72	23	US
18	20627.93	395.57	5.08	15	US
19	18672.65	360.3	10.69	10	US
20	22264.47	429.11	8.39	21	US
21	15141.12	314.66	12.15	6	CA
22	13722.25	276.63	9.24	22	US
23	18894.84	385.91	10.41	11	CA
24	22344.47	429.57	9.75	13	US
25	19634.08	357.61	12.04	18	US
26	8879.141	167.23	12.63	15	US
27	15088.41	295.87	8.51	18	US
28	20848.96	432.34	12.68	10	CA
29	9475.414	193	9.59	12	CA
30	14812.36	260.79	9.44	16	US
31	20344.36	385.86	6.26	23	US
32	8368.586	149.45	7.55	20	US
33	11233.23	241.1	9.61	20	CA
34	10914.86	208.43	9.55	6	CA
35	17711.01	343.74	8.66	14	US
36	21601.96	420.96	11.59	17	US
37	18619.38	343.74	8.75	24	US
38	16200.25	290.4	4.37	14	US
39	15658.7	307.54	9.9	20	CA
40	9261.009	177.78	9.74	12	US
41	24337.11	475.05	10.07	8	US
42	18434.8	358.92	10.71	25	US
43	18352.78	364.57	9.06	24	US
44	29072.28	563.95	8.43	9	US
45	10007.18	182.08	9.35	20	US
46	5195.014	120.06	10.46	22	CA
47	22500.52	447.63	10.76	7	CA
48	26908.53	523.12	14.2	17	US
49	11515.28	243.85	11.76	9	CA
50	18762.21	389.5	10.54	7	CA
51	4680.459	84.65	10.06	6	US
52	17187.16	322.55	8.8	22	US
53	14894.33	279.58	8.66	22	US
54	16304.28	307.78	8.19	17	US
55	23212.43	456.12	9.52	11	US
56	14944.88	310.4	9.06	8	CA
57	21547.61	423.17	10.19	24	US
58	9681.604	164.55	6.36	16	US
59	16561.15	334.13	13.05	10	CA
60	20894.57	409.21	8.76	12	US
61	13328.45	245.81	5.5	17	US
62	14741.21	293.13	12.89	9	US
63	12122.16	225.97	11.79	22	US
64	13713.16	266.86	13.82	17	US
65	13765.65	290.89	8.12	18	CA
66	16474.52	318.32	10.67	11	US
67	20590.14	407.23	10.58	18	US
68	19164.88	369.69	12.94	5	US
69	6683.109	116.23	10.08	25	US
70	16400.47	312.63	12.21	15	US
71	19622.38	382.24	9.93	17	CA
72	8106.413	145.42	10.87	22	US
73	23708.71	457.34	8.61	16	US
74	20500.96	432.33	9.36	15	CA
75	14497.24	273.13	10.37	16	US
76	9708.514	188.9	11.05	9	US
77	15006.76	293.4	11.34	13	US
78	10681.88	198.44	9.74	19	US
79	11732.61	225.53	7.15	11	CA
80	9018.723	184.58	12.61	16	CA
81	19717.14	388.05	9.41	7	US
82	9402.169	161.98	11.77	19	US
83	14566.6	292.61	7.92	19	US
84	19790.61	412.22	13.97	25	US
85	12463.1	258.16	10.43	21	CA
86	19690.1	384.83	11.94	12	CA
87	13486.26	255.38	9.28	5	US
88	16749.84	317.15	13.84	5	US
89	19419.04	396.1	8.57	24	US
90	27022.3	528.49	8.66	21	US
91	8882.384	192.22	13.27	25	CA
92	13668.88	254.36	10.29	17	US
93	18682.92	348.46	12.72	21	US
94	14053.93	281.03	9.64	13	CA
95	18078.76	328.94	10.81	11	US
96	13269.44	275.2	15.6	20	US
97	17573.47	341.52	8.95	14	US
98	19203.92	371.19	11.61	21	US
99	20194.68	365.54	13.48	8	US
100	11408.27	241.37	10.35	15	CA
101	13908.3	238.71	9.25	7	US
102	16529.05	332.39	9.92	10	CA
103	10745.13	215.93	17.05	7	US
104	12209.75	253.86	14.26	14	US
105	11014.18	212.34	8.34	15	CA
106	15801.57	313.54	9.02	25	CA
107	16690.77	325.7	11.6	18	US
108	13873.63	296.61	7.03	8	CA
109	15927.43	310.72	13.84	17	US
110	10146.82	195.58	7.5	8	US
111	18021.6	372.25	12.7	16	CA
112	9008.805	158.15	9.02	8	US
113	10538.53	211.88	8.78	15	CA
114	18702.03	354.77	10.28	11	US
115	15416.39	323.9	10.46	6	CA
116	4959.617	103.37	11.37	14	US
117	20863.57	438.01	14.78	23	CA
118	16804.79	336.28	9.22	19	CA
119	11430.69	224.14	10.26	8	US
120	16538.42	320.86	6.22	15	US
121	17149.53	342.64	10.05	25	US
122	7146.345	115.13	7.16	23	US
123	15015.04	283.97	10.6	17	US
124	15565.16	284.75	8.4	22	US
125	21702.4	435.15	10.87	21	US
126	19801.48	398.74	12.53	24	US
127	19018.79	387.07	11.34	16	CA
128	13240.78	278.04	11.47	5	US
129	20708.15	383.76	5.15	8	US
130	15156.16	280.24	4.18	22	US
131	22011.92	418.47	7.85	22	CA
132	17545.02	328.77	10.85	6	US
133	16334.95	308.8	9.4	21	US
134	24213.34	471.41	9.81	24	US
135	17073.52	349.27	10.79	9	CA
136	13939.97	262.66	8.59	22	US
137	19788.46	392.42	15.28	13	US
138	27812.92	543.85	11.06	22	US
139	17852.1	349.15	9.01	25	US
140	20175.51	389.64	9.06	7	US
141	22411.95	430.18	9.31	22	US
142	19085.25	345.21	10.42	18	US
143	16992.43	337	9.96	23	US
144	21579.54	434.6	13.69	10	US
145	6687.625	157.54	11.65	21	CA
146	11547.72	209.22	8.41	7	US
147	14993.42	274.9	12.29	5	US
148	11859.7	256.19	10.43	14	CA
149	21780.99	415.16	9.85	18	US
150	14839.1	280.11	12.34	12	US
151	21120.66	432.86	10.85	11	CA
152	13967.69	259.1	11.08	11	US
153	15342.14	311.61	10.45	11	US
154	11814.33	250.67	7.14	18	CA
155	19327.59	394.53	11.88	14	CA
156	9811.389	214.4	11.62	17	CA
157	23310.01	470.78	11.26	21	CA
158	13971.19	275.77	12.06	16	US
159	6470.148	111.37	12.36	16	US
160	19365.62	381.43	9.89	15	US
161	22672.09	429.7	7.43	10	US
162	13213.62	248.54	9.4	5	US
163	22436.09	434.87	8.9	17	US
164	6438.395	129.57	12.29	12	CA
165	9744.778	196.56	8.87	11	US
166	9928.218	195.1	11.75	19	US
167	13611.03	248.52	7.36	24	US
168	16999.91	328.65	10.78	21	US
169	26069.2	494.01	4.15	24	US
170	24952.39	457.71	9.36	5	US
171	11626.31	244.33	8.46	17	CA
172	19102.21	383.26	11.72	22	CA
173	22484.83	432.19	11.48	12	US
174	26740.34	516.38	12.09	22	US
175	11672.32	236.77	13.56	6	CA
176	15397.99	295.18	12.74	11	US
177	8121.026	171.97	6.71	7	CA
178	15884.65	313.59	10.54	24	CA
179	15080.59	302.94	11.5	21	CA
180	19718.52	360.52	6.98	12	US
181	6919.789	127.58	10.02	23	US
182	19203.21	363.09	7.69	24	US
183	18637.75	354.57	7.3	25	US
184	15087.76	288	8.57	9	US
185	17380.13	325.17	13.82	12	US
186	11919.12	230.91	10.6	8	CA
187	12952.55	236.22	8.12	17	US
188	5175.387	122.5	9.2	9	CA
189	3679.158	81.63	8.52	24	CA
190	14810.78	297.9	7.65	10	CA
191	16642.09	311.84	8.03	24	US
192	12304.48	239.73	11.28	19	US
193	11762.87	221.78	12.15	11	US
194	26254.52	498.67	9.54	22	US
195	8312.645	177.98	10.09	5	CA
196	18078.51	338.86	9.5	16	US
197	8999.646	158.07	9.3	10	US
198	13690.9	274.35	11.53	14	CA
199	13873.02	265.84	10.22	21	CA
200	15671.53	286.59	7.99	12	US