Application of “Difference Between Means” method

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Application of “Difference Between Means” method

1. Apply the “Independent Samples” technique to data from work.

a. Give the mean for each sample.

b. Give the 95% confidence interval for the mean for each sample

c. State whether the intervals overlap with each other, (or not).

d. Based on the overlap (or not), give your conclusion: Significant?

2. Apply the “Non-Independent Samples” (paired measures) technique to data from work.

a. Give the mean for the difference.

b. Give the 95% confidence interval for the mean of the difference.

c. State whether the interval overlaps with zero, (or not).

d. Based on the overlap (or not), give your conclusion: Significant?

Hint: You may use the Excel Spreadsheet from lecture as a guide.

1 or 2 pages