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The Following Information Was Obtained from Matched Samples Taken from Two

Question 4

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The following information was obtained from matched samples taken from two populations. The daily production rates for a sample of workers before and after a training program are shown below.Assume the population of differences is normally distributed. The following information was obtained from matched samples taken from two populations. The daily production rates for a sample of workers before and after a training program are shown below.Assume the population of differences is normally distributed. ​ The null hypothesis to be tested is H<sub>0</sub>: μd = 0.The test statistic is A) -1.96. B) 1.77. C) 0. D) 1.00. ​
The null hypothesis to be tested is H0: μd = 0.The test statistic is


A) -1.96.
B) 1.77.
C) 0.
D) 1.00.

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