The college of science at a particular university has 286 alum in a given year. Each of them are sent a survey after they graduate, and 26 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 7.6 with a standard deviation of 2.2. Is there significant evidence to conclude that the scores of these recent graduates is different from 7 at the 0.01 significance level? Note that there's evidence that this distribution is symmetric. What are the hypotheses? Ho:µ <7 vs H1:µ > 7 Ho:µ + 7 vs H1 : H = 7 Ho:µ = 7 vs H1: u #7 Ho:µ < 7 vs H1 : H27 What is probability statement for the p-value? P(Z > test statistic) P(T > test statistic) 2P(Z + test statistic) 2P(T test statistic) None of the above If the p-value were to be 0.001, state and justify your decision. Accept Ho because the p-value > a.
The college of science at a particular university has 286 alum in a given year. Each of them are sent a survey after they graduate, and 26 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 7.6 with a standard deviation of 2.2. Is there significant evidence to conclude that the scores of these recent graduates is different from 7 at the 0.01 significance level? Note that there's evidence that this distribution is symmetric. What are the hypotheses? Ho:µ <7 vs H1:µ > 7 Ho:µ + 7 vs H1 : H = 7 Ho:µ = 7 vs H1: u #7 Ho:µ < 7 vs H1 : H27 What is probability statement for the p-value? P(Z > test statistic) P(T > test statistic) 2P(Z + test statistic) 2P(T test statistic) None of the above If the p-value were to be 0.001, state and justify your decision. Accept Ho because the p-value > a.
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Problem 1P
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
Transcribed Image Text:The college of science at a particular university has 286 alum in a given year. Each of them are sent a
survey after they graduate, and 26 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 7.6 with a standard deviation of 2.2. Is there significant evidence to conclude that the scores of
these recent graduates is different from 7 at the 0.01 significance level? Note that there's evidence that
this distribution is symmetric.
What are the hypotheses?
Ho: µ < 7 vs H1:µ > 7
H0:μ# Ίνs Η: μ =7
Ho :µ = 7 vs H1 : µ #7
Ho:µ < 7 vs H1 :µ 2 7
What is probability statement for the p-value?
P(Z > test statistic)
P(T > test statistic)
2P(Z test statistic)
2P(T test statistic)
None of the above
If the p-value were to be 0.001, state and justify your decision.
Accept Ho because the p-value > a.
Fail to reject Họ because the p-value < a.
Accept Ho because the p-value < a.
Reject Ho because the p-value < a.
Fail to reject H, because the p-value > a.
Reject Ho because the p-value > a.

Transcribed Image Text:2P(Z + test statistic)
2P(T + test statistic)
None of the above
If the p-value were to be 0.001, state and justify your decision.
Accept Ho because the p-value > a.
Fail to reject Họ because the p-value < a.
Accept Ho because the p-value < a.
Reject Ho because the p-value < a.
Fail to reject H, because the p-value > a.
Reject Ho because the p-value > a.
conclude that the average response score of
7.
The correct conclusion is that we
recent graduates is
What level of concern do you have for the validity of your results?
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 nonresponse bias
Questionable
there is likely to be some response bias and n < 30
Questionable
the sample size is less than 30
Questionable
there is likely to be some nonresponse bias and n < 30
Questionable
there is likely to be some response bias
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