Consider the following hypothesis test:Ho:µ< 12H1:µ > 12A sample of 25 provided a sample mean z = 14 and a sample standard deviations = 4.32.At a = .05, you reject the null hypothesis.In Assessment-Assignment, show your solution in detail ( using p-value and thecritical value approach)TrueFalse

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Answered: Consider the following hypothesis test:…

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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consider the following hypothesis test H0: u = 22 H a :u (canceled =) 22 A sample of 75 is used and the population standard deviation is 10 . Compute the -value and state your conclusion for each of the following sample results. Use a=0.01. Round value to two decimal places and -value to four decimal places. Enter negative values as negative numbers. a. (mean)=23 z-value p-value b. (mean)= 25.1 z-value p-value c. (mean)=20 z- value p-value
You wish to test the claim that the average IQ score is less than 100 at the .01 significance level. You determine the hypotheses are: Ho: μ=100 H1:μ<100H You take a simple random sample of 79 individuals and find the mean IQ score is 98.3, with a standard deviation of 15.3. Let's consider testing this hypothesis two ways: once with assuming the population standard deviation is not known and once with assuming that it is known. Round to three decimal places where appropriate. Assume Population Standard Deviation is NOT known Assume Population Standard Deviation is 15 Test Statistic: t = Test Statistic: z = Critical Value: t = Critical Value: z = p-value: p-value: Conclusion About the Null: Reject the null hypothesis Fail to reject the null hypothesis Conclusion About the Null: Reject the null hypothesis Fail to reject the null hypothesis Conclusion About the Claim: There is sufficient evidence to support the claim that the average IQ score is less…
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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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Consider the following hypothesis test: Ho:u< 12 H1:µ > 12 A sample of 25 provided a sample mean x = 14 and a sample standard deviation s = 4.32. At a = .05, you reject the null hypothesis.