Solution-Percent confidence intervals for sample size

Percent confidence intervals for sample size

Assignment Help Basic Statistics

Reference no: EM131042016

Set 1:

1. Given the mean equals to 33.1, and s = 1.56, compute the 99 percent and 90 percent confidence intervals for sample size n = 121.

2. Use one example to explain the differences between Type I error and Type II error and their relationship to the power of a statistical test

Set 2:

You wish to compare the short-term effects between two new sleep-aid drugs. You try the two drugs in a sample of eight subjects with five days between the two tests. The following data gives the number of hours during the night under each drug.

Subject	Drug A	Drug B
1	6	5
2	5	6
3	6	6
4	7	7
5	8	6
6	4	5
7	5	7
8	6	6

1. If you want to know if the two drugs have similar or different effects, what is the appropriate analysis?

A. An independent-samples T-test

B. A paired-samples T-test

2. Run the appropriate analysis using α = .05 and report your results.

Reference no: EM131042016

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Percent confidence intervals for sample size

Reference no: EM131042016

Reference no: EM131042016

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