(a) The following data are from matched samples taken from two populations. Compute the difference va Population Element 1 2 Difference 1 11 7 9 4 4 12 5 13 8 15 13 7 15 12 (b) Compute d. (c) Compute the standard deviation s. (Round your answer to two decimal places.) 3.

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Recall the method used to obtain a confidence interval for the difference between two population means for matched samples.
(a) The following data are from matched samples taken from two populations. Compute the difference value for each element. (Use Population 1 - Population 2.)
Population
Element
2
Difference
11
6
2
7
6
3
9
4
4
12
13
8
6
15
13
15
12
(b) Compute d.
(c) Compute the standard deviation s. (Round your answer to two decimal places.)
(d) What is the point estimate of the difference between the two population means? (Use Population 1 - Population 2.)
(e) Provide a 95% confidence interval for the difference between the two population means. (Use Population 1 – Population 2. Round your answers to two decimal places.)
to
Transcribed Image Text:Recall the method used to obtain a confidence interval for the difference between two population means for matched samples. (a) The following data are from matched samples taken from two populations. Compute the difference value for each element. (Use Population 1 - Population 2.) Population Element 2 Difference 11 6 2 7 6 3 9 4 4 12 13 8 6 15 13 15 12 (b) Compute d. (c) Compute the standard deviation s. (Round your answer to two decimal places.) (d) What is the point estimate of the difference between the two population means? (Use Population 1 - Population 2.) (e) Provide a 95% confidence interval for the difference between the two population means. (Use Population 1 – Population 2. Round your answers to two decimal places.) to
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