Two independent samples have been selected, 70 observations from population 1 and 74 observations from population 2. The sample means have been calculated to be ¤1 = 14.2 and x2 = 14.7. From previous experience with these populations, it known that the variances are o = 22 and o, = 40. (a) Find o (71-T2)" answer: (b) Determine the rejection region for the test of Ho : (µ – 42) = 2.29 and Ha : (µ1 – µ2) > 2.29 Use a = 0.03. %3D z > (c) Compute the standardized test statistic. The final conclustion is
Two independent samples have been selected, 70 observations from population 1 and 74 observations from population 2. The sample means have been calculated to be ¤1 = 14.2 and x2 = 14.7. From previous experience with these populations, it known that the variances are o = 22 and o, = 40. (a) Find o (71-T2)" answer: (b) Determine the rejection region for the test of Ho : (µ – 42) = 2.29 and Ha : (µ1 – µ2) > 2.29 Use a = 0.03. %3D z > (c) Compute the standardized test statistic. The final conclustion is
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Two independent samples have been selected, 70 observations from population 1 and 74 observations from population 2.
= 14.2 and x2 =
14.7. From previous experience with these populations, it is
The sample means have been calculated to be x1
known that the variances are o
22 and o,
40.
(a) Find
answer:
(b) Determine the rejection region for the test of Ho : (µ1 – µ2) = 2.29 and Ha : (µ1 – µ2) > 2.29 Use a = 0.03.
z >
(c) Compute the standardized test statistic.
z =
The final conclustion is
O A. We can reject the null hypothesis that (u1 – H2) = 2.29 and accept that (ı – µ2) > 2.29.
O B. There is not sufficient evidence to reject the null hypothesis that (u1 - µ2) = 2.29.
(d) Construct a 97 % confidence interval for (µ1 – µ2).
< (H1 – 42) <](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F871ecd44-fc4a-4e4c-adcf-b0a7e4aec0cb%2F698d844b-6b5c-4c33-8044-6541cfe0f226%2F03t3fhj_processed.png&w=3840&q=75)
Transcribed Image Text:Two independent samples have been selected, 70 observations from population 1 and 74 observations from population 2.
= 14.2 and x2 =
14.7. From previous experience with these populations, it is
The sample means have been calculated to be x1
known that the variances are o
22 and o,
40.
(a) Find
answer:
(b) Determine the rejection region for the test of Ho : (µ1 – µ2) = 2.29 and Ha : (µ1 – µ2) > 2.29 Use a = 0.03.
z >
(c) Compute the standardized test statistic.
z =
The final conclustion is
O A. We can reject the null hypothesis that (u1 – H2) = 2.29 and accept that (ı – µ2) > 2.29.
O B. There is not sufficient evidence to reject the null hypothesis that (u1 - µ2) = 2.29.
(d) Construct a 97 % confidence interval for (µ1 – µ2).
< (H1 – 42) <
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