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What are the hypotheses? Ο Ηo : μ < 8 vs Hy : μ > 8 Ho : μ < 8 vs Hy : μ > 8 Hoμ8 vs H₁ : μ ‡ 8 O Ho 8 vs H₁ : μ = 8 What is probability statement for the p-value? 2P(T test statistic) 2P(Z test statistic) OP(Z >test statistic) OP(T test statistic) None of the above If the p-value were to be 0.008, state and justify your decision.

What are the hypotheses? Ο Ηo : μ < 8 vs Hy : μ > 8 Ho : μ < 8 vs Hy : μ > 8 Hoμ8 vs H₁ : μ ‡ 8 O Ho 8 vs H₁ : μ = 8 What is probability statement for the p-value? 2P(T test statistic) 2P(Z test statistic) OP(Z >test statistic) OP(T test statistic) None of the above If the p-value were to be 0.008, state and justify your decision.

MATLAB: An Introduction with Applications
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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The college of science at a particular university has 322 alum in a given year. Each of them are sent a survey after they graduate, and 23 of them are returned. The survey asks many things, chiefly among them how prepared they feel enterring the real world upon graduation. The results (on a scale of 1-10) show an average of 8.9 with a standard deviation of 2.3. Is there significant evidence to conclude that the scores of these recent graduates is better than 8 at the 0.01 significance level? Note that there's evidence that this distribution is symmetric. What are the hypotheses? Ho : μ < 8 vs H : μ > 8 Ho : μ < 8 vs Hy : μ > 8 Ho μ = 8 vs H₁ : µ ‡ 8 : Ho : μ‡8 vs H₁ : µ = 8 What is probability statement for the p-value? 2P(T test statistic) 2P(Z #test statistic) O P(Z >test statistic) OP(T test statistic) None of the above If the p-value were to be 0.008, state and justify your decision. Reject Ho because the p-value < a. Accept Ho because the p-value > a. Fail to reject Ho because the p-value > a. Accept Ho because the p-value < a. Reject Ho because the p-value > a. Fail to reject Ho because the p-value < a. The correct conclusion is that we Select an answer conclude that the average response score of Select an answer recent graduates is Select an answer 8. What level of concern do you have for the validity of your results? O Questionable the sample size is less than 30 Questionable - there is likely to be some nonresponse bias Valid - while the sample size is less than 30, the symmetry in the distribution means this isn't a concern Questionable there is likely to be some response bias Questionable - there is likely to be some response bias and n < 30 Questionable there is likely to be some nonresponse bias and n < 30
Transcribed Image Text:The college of science at a particular university has 322 alum in a given year. Each of them are sent a survey after they graduate, and 23 of them are returned. The survey asks many things, chiefly among them how prepared they feel enterring the real world upon graduation. The results (on a scale of 1-10) show an average of 8.9 with a standard deviation of 2.3. Is there significant evidence to conclude that the scores of these recent graduates is better than 8 at the 0.01 significance level? Note that there's evidence that this distribution is symmetric. What are the hypotheses? Ho : μ < 8 vs H : μ > 8 Ho : μ < 8 vs Hy : μ > 8 Ho μ = 8 vs H₁ : µ ‡ 8 : Ho : μ‡8 vs H₁ : µ = 8 What is probability statement for the p-value? 2P(T test statistic) 2P(Z #test statistic) O P(Z >test statistic) OP(T test statistic) None of the above If the p-value were to be 0.008, state and justify your decision. Reject Ho because the p-value < a. Accept Ho because the p-value > a. Fail to reject Ho because the p-value > a. Accept Ho because the p-value < a. Reject Ho because the p-value > a. Fail to reject Ho because the p-value < a. The correct conclusion is that we Select an answer conclude that the average response score of Select an answer recent graduates is Select an answer 8. What level of concern do you have for the validity of your results? O Questionable the sample size is less than 30 Questionable - there is likely to be some nonresponse bias Valid - while the sample size is less than 30, the symmetry in the distribution means this isn't a concern Questionable there is likely to be some response bias Questionable - there is likely to be some response bias and n < 30 Questionable there is likely to be some nonresponse bias and n < 30
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