1. What is the calculated t-statistic? (use 4 significant figures) 2. Enter the absolute value of the critical t-value based upon the fact that this is a two-tailed est and that we are using an alpha-level of 0.05? (use 4 significant figures) 3. Based on the comparison between the critical t-value and the calculated t-statistic, will the hull hypothesis reject or not reject?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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An article in Technometrics (1999, Vol. 41, pp.202-211) studied the capability of a gauge by measuring the weights of two sheets of paper. The
data are shown below. Test the hypothesis that the two means are equal. Assume equal variances and an alpha-level of 0.05. Answer the
following questions regarding your t-test.
Paper
Observations
1
3.481
3.448
3.485
3.475
3.472
3.477
3.472
3.464
3.472
3.470
3.470
3.470
3.477
3.473
3.474
2
3.258
3.254
3.256
3.249
3.241
3.254
3.247
3.257
3.239
3.250
3.258
3.239
3.245
3.240
3.254
1. What is the calculated t-statistic? (use 4 significant figures)
2. Enter the absolute value of the critical t-value based upon the fact that this is a two-tailed
test and that we are using an alpha-level of 0.05? (use 4 significant figures)
3. Based on the comparison between the critical t-value and the calculated t-statistic, will the
null hypothesis reject or not reject?
Transcribed Image Text:An article in Technometrics (1999, Vol. 41, pp.202-211) studied the capability of a gauge by measuring the weights of two sheets of paper. The data are shown below. Test the hypothesis that the two means are equal. Assume equal variances and an alpha-level of 0.05. Answer the following questions regarding your t-test. Paper Observations 1 3.481 3.448 3.485 3.475 3.472 3.477 3.472 3.464 3.472 3.470 3.470 3.470 3.477 3.473 3.474 2 3.258 3.254 3.256 3.249 3.241 3.254 3.247 3.257 3.239 3.250 3.258 3.239 3.245 3.240 3.254 1. What is the calculated t-statistic? (use 4 significant figures) 2. Enter the absolute value of the critical t-value based upon the fact that this is a two-tailed test and that we are using an alpha-level of 0.05? (use 4 significant figures) 3. Based on the comparison between the critical t-value and the calculated t-statistic, will the null hypothesis reject or not reject?
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