Find the P-value for a left-tailed hypothesis test with a test statistic of z= -1.02. Decide whether to reject Ho if the level of significance is α = 0.05.P-value= (Round to four decimal places as needed.)C

P value is obtained using standard Normal table If p value is greater than level of significance,we fail to reject the null hypothesis otherwise we accept it

Answered: Find the P-value for a left-tailed…

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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Q1: A researcher was interested in the effect of exercise on stress levels. For the general population, the distribution of the Stress Battery Scale scores is normal with the mean of µ = 25 and the standard deviation of σ = 5. A sample of n = 100 participants was asked to exercise for three weeks and then reported their stress levels. The sample mean was ?X = 23. Conduct a hypothesis test and determine the effect of exercise. Use the two-tailed test α = .01 1.Type the null and research hypotheses in complete sentences. 2.Cut off points 3.Standard error and z-score -show your computation process 4.Your conclusion thoroughly.
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Find the P-value for a left-tailed hypothesis test with a test statistic of z= -1.02. Decide whether to reject Ho if the level of significance is α = 0.05. P-value= (Round to four decimal places as needed.) C