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Stat-200: The number of cell phones per 30 residents in countries in Europe is given in table C for the year 2010. The number of cell phones per 30 residents in countries of the Americas is given in table D also for the year 2010.

Stat-200: The number of cell phones per 30 residents in countries in Europe is given in table C for the year 2010. The number of cell phones per 30 residents in countries of the Americas is given in table D also for the year 2010.: Expert Solutions for Success

The number of cell phones per 30 residents in countries in Europe is given in table C for the year 2010. The number of cell phones per 30 residents in countries of the Americas is given in table D also for the year 2010. Find the 90% confidence interval for the different in mean number of cell phones per 30 residents in Europe and the Americas.

Table C: Number of Cell Phones per 30 Residents in Europe

100	76	100	130	75	84
112	84	138	133	118	134
126	188	129	93	64	128
124	122	109	121	127	152
96	63	99	95	151	147

Table D: Number of Cell Phones per 30 Residents in the Americas

158	117	106	159	53	50
78	66	88	92	42	3
150	72	86	113	50	58
70	109	37	32	85	101
75	69	55	115	95	73

Answer

The 90% CI for the mean difference is (18.08, 45.98)

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Stat-200: The number of cell phones per 30 residents in countries in Europe is given in table C for the year 2010. The number of cell phones per 30 residents in countries of the Americas is given in table D also for the year 2010.: Expert Solutions for Success

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100	76	100	130	75	84
112	84	138	133	118	134
126	188	129	93	64	128
124	122	109	121	127	152
96	63	99	95	151	147

158	117	106	159	53	50
78	66	88	92	42	3
150	72	86	113	50	58
70	109	37	32	85	101
75	69	55	115	95	73

100	76	100	130	75	84
112	84	138	133	118	134
126	188	129	93	64	128
124	122	109	121	127	152
96	63	99	95	151	147

158	117	106	159	53	50
78	66	88	92	42	3
150	72	86	113	50	58
70	109	37	32	85	101
75	69	55	115	95	73

100	76	100	130	75	84
112	84	138	133	118	134
126	188	129	93	64	128
124	122	109	121	127	152
96	63	99	95	151	147

158	117	106	159	53	50
78	66	88	92	42	3
150	72	86	113	50	58
70	109	37	32	85	101
75	69	55	115	95	73