7 A random sample of 22 employees in company A has a mean annual income of OMR 10000 and a standard deviation of OMR 1700. In company B, a random sample of 25 employees has a mean annual income of OMR 9500 and a standard deviation of OMR 1500 Test the claim at a = 0.05 that the mean annual incomes in the two companies are different. Assume the population variances are equal. Therefore, the level of significance is: Answer:
7 A random sample of 22 employees in company A has a mean annual income of OMR 10000 and a standard deviation of OMR 1700. In company B, a random sample of 25 employees has a mean annual income of OMR 9500 and a standard deviation of OMR 1500 Test the claim at a = 0.05 that the mean annual incomes in the two companies are different. Assume the population variances are equal. Therefore, the level of significance is: Answer:
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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Question
7
A random sample of 22 employees in company A has a mean annual income of OMR 10000 and a standard deviation of OMR 1700. In company B, a random sample of 25 employees has a mean annual income of OMR 9500 and a standard deviation of OMR 1500 Test the claim at a = 0.05 that the mean annual incomes in the two companies are different. Assume the population variances are equal.
Therefore, the level of significance is:
Therefore, the level of significance is:
Answer:
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