STA 2023-A sample of 20 paired observations generates
Question # 00624741
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Updated on: 12/05/2017 12:31 PM Due on: 12/05/2017
A sample of 20 paired observations generates the following data: = 1.3 and = 2.6. Assume a normal distribution. Use Table 2.
a.Construct the 90% confidence interval for the mean difference ?D. (Round all intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.)
b.Using the confidence interval, test whether the mean difference differs from zero.
a. There is evidence that the mean difference differs from zero.
b. There is no evidence that the mean difference differs from zero.
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Solution: STA 2023-A sample of 20 paired observations generates