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Consider the following results for independent random samples taken from two populations. Sample 1 Sample 2 1 = 10 %3D ny = 30 T1 = 22.6 %3D E2 = 20.7 81 = 2.5 82 = 4.4 a. What is the point estimate of the difference between the two population means (to 1 decimal)?

Consider the following results for independent random samples taken from two populations. Sample 1 Sample 2 1 = 10 %3D ny = 30 T1 = 22.6 %3D E2 = 20.7 81 = 2.5 82 = 4.4 a. What is the point estimate of the difference between the two population means (to 1 decimal)?

FINANCIAL ACCOUNTING
FINANCIAL ACCOUNTING
10th Edition
ISBN:9781259964947
Author:Libby
Publisher:Libby
Chapter1: Financial Statements And Business Decisions
Section: Chapter Questions
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Exercise 10.09 Algo (Inferences About the Difference Between Two Population Means: Sigmas Unknown) « Question 9 of 13 > Consider the following results for independent random samples taken from two populations. Sample 1 Sample 2 n1 = 10 n2 = 30 71 = 22.6 E2 = 20.7 81 = 2.5 82 = 4.4 a. What is the point estimate of the difference between the two population means (to 1 decimal)? b. What is the degrees of freedom for the t distribution (round the answer to the previous whole number)? c. At 95% confidence, what is the margin of error (to 1 decimal)? d. What is the 95% confidence interval for the difference between the two population means (to 1 decimal and enter negative value as negative number)? 0= Icon Key
Transcribed Image Text:Exercise 10.09 Algo (Inferences About the Difference Between Two Population Means: Sigmas Unknown) « Question 9 of 13 > Consider the following results for independent random samples taken from two populations. Sample 1 Sample 2 n1 = 10 n2 = 30 71 = 22.6 E2 = 20.7 81 = 2.5 82 = 4.4 a. What is the point estimate of the difference between the two population means (to 1 decimal)? b. What is the degrees of freedom for the t distribution (round the answer to the previous whole number)? c. At 95% confidence, what is the margin of error (to 1 decimal)? d. What is the 95% confidence interval for the difference between the two population means (to 1 decimal and enter negative value as negative number)? 0= Icon Key
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