The residents of Kitengela town complain that there is more traffic jam along Mombasa road than on Thika road and as such they take more minutes to reach Nairobi CBD than the residents of Thika town. Independent random samples of minutes taken to reach Nairobi CBD over the last three months were taken and presented as follows: Kitengela Thika 98 109 110 106 100 97 124 110 140 85 135 119 128 105 138 85 142 93 150 92 128 100 137 98 156 105 128 137 156 142 138 140 99 Assuming equal population variances, find a 99% confidence interval for the differences in mean of minutes taken to rich CBD by these two town residents.
The residents of Kitengela town complain that there is more traffic jam along Mombasa road than on Thika road and as such they take more minutes to reach Nairobi CBD than the residents of Thika town. Independent random samples of minutes taken to reach Nairobi CBD over the last three months were taken and presented as follows: Kitengela Thika 98 109 110 106 100 97 124 110 140 85 135 119 128 105 138 85 142 93 150 92 128 100 137 98 156 105 128 137 156 142 138 140 99 Assuming equal population variances, find a 99% confidence interval for the differences in mean of minutes taken to rich CBD by these two town residents.
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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![The residents of Kitengela town complain that there is more
traffic jam along Mombasa road than on Thika road and as
such they take more minutes to reach Nairobi CBD than the
residents of Thika town. Independent random samples of
minutes taken to reach Nairobi CBD over the last three
months were taken and presented as follows:
Kitengela
Thika
98
109
110
106
100
97
124
110
140
85
135
119
128
105
138
85
142
93
150
92
128
100
137
98
156
105
128
137
156
142
138
140
99
Assuming equal population variances, find a 99%
confidence interval for the differences in mean of minutes
taken to rich CBD by these two town residents.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc140a307-3e56-4517-a2ac-d6eaab012e2b%2F3acd9d4c-6f02-44db-9276-c347c254bcf7%2Fv53w4ij_processed.png&w=3840&q=75)
Transcribed Image Text:The residents of Kitengela town complain that there is more
traffic jam along Mombasa road than on Thika road and as
such they take more minutes to reach Nairobi CBD than the
residents of Thika town. Independent random samples of
minutes taken to reach Nairobi CBD over the last three
months were taken and presented as follows:
Kitengela
Thika
98
109
110
106
100
97
124
110
140
85
135
119
128
105
138
85
142
93
150
92
128
100
137
98
156
105
128
137
156
142
138
140
99
Assuming equal population variances, find a 99%
confidence interval for the differences in mean of minutes
taken to rich CBD by these two town residents.
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