In a test of hypotheses \( H_0: \mu = -27 \) versus \( H_a: \mu \neq -27 \) in a normally distributed population, the rejection region is the union of intervals \((-\infty, -2.120) \cup [2.120, \infty)\). The value of the sample mean computed from a sample of size 17 is \( \bar{x} = -28.5 \), and the value of the test statistic is \( t = -2.811 \). The correct decision and justification are:(a) Do not reject \( H_0 \) because the sample is small.(b) Do not reject \( H_0 \) because \(-28.5\) lies in the rejection region.(c) Reject \( H_0 \) because \( \bar{x} = -28.5 \neq -27 = \mu_0 \).(d) Reject \( H_0 \) because the test statistic is negative.(e) Reject \( H_0 \) because \(-2.811 < -2.120\).

Answered: a test of hypotheses Ho : H = -27…

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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