Consider the following data for two independent random samples taken from two normal populations. Sample 1 10 6 14 7 9 8 Sample 2 8 7 4 6 (a) Compute the two sample means. Sample 1 Sample 2 (b) Compute the two sample standard deviations. (Round your answers to two decimal places.) Sample 1 Sample 2 (c) What is the point estimate of the difference between the two population means? (Use Sample 1 - Sample 2.) (d) What is the 90% confidence interval estimate of the difference between the two population means? (Use Sample 1 - Sample 2. Round your answers to two decimal places.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Consider the following data for two independent random samples taken from two normal populations.
Sample 1
10
6
14 79
8
Sample 2
8
7
8
4
9
(a) Compute the two sample means.
Sample 1
Sample 2
(b) Compute the two sample standard deviations. (Round your answers to two decimal places.)
Sample 1
Sample 2
(c) What is the point estimate of the difference between the two population means? (Use Sample 1 - Sample 2.)
(d) What is the 90% confidence interval estimate of the difference between the two population means? (Use Sample 1 - Sample 2. Round your answers to two decimal places.)
Transcribed Image Text:Consider the following data for two independent random samples taken from two normal populations. Sample 1 10 6 14 79 8 Sample 2 8 7 8 4 9 (a) Compute the two sample means. Sample 1 Sample 2 (b) Compute the two sample standard deviations. (Round your answers to two decimal places.) Sample 1 Sample 2 (c) What is the point estimate of the difference between the two population means? (Use Sample 1 - Sample 2.) (d) What is the 90% confidence interval estimate of the difference between the two population means? (Use Sample 1 - Sample 2. Round your answers to two decimal places.)
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