You'd like to test the null hypothesis that the means of the two samples (column A and column B) are the same. The alternative hypothesis is that they are not the same. You have no reason to believe that the standard deviations of the two samples are equal. Test at the alpha = 0.10 level. After using Excel, what do you conclude? Are the means the same?
You'd like to test the null hypothesis that the means of the two samples (column A and column B) are the same. The alternative hypothesis is that they are not the same. You have no reason to believe that the standard deviations of the two samples are equal. Test at the alpha = 0.10 level. After using Excel, what do you conclude? Are the means the same?
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.5: Percents
Problem 23OE
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You'd like to test the null hypothesis that the means of the two samples (column A and column B) are the same. The alternative hypothesis is that they are not the same. You have no reason to believe that the standard deviations of the two samples are equal. Test at the alpha = 0.10 level.
After using Excel, what do you conclude? Are the means the same?
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X1
X2
99.11
104.06
100.73
101.94
103.49
95.24
100.36
104.86
105.60
103.15
100.13
95.80
100.09
104.27
95.91
105.10
104.71
103.84
104.17
99.47
98.16
100.61
98.37
101.88
104.63
105.06
94.71
99.86
103.43
100.07
92.43
101.05
107.92
107.25
106.58
98.07
104.20
97.17
100.16
101.72
99.03
100.23
97.49
100.56
98.93
95.48
95.91
100.31
98.24
99.07
91.83
105.11
104.12
94.33
94.26
95.38
102.83
101.08
102.25
104.01
100.95
99.70
96.46
96.04
102.02
101.50
103.16
104.16
99.17
97.82
102.84
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