Mr Stat makes a claim the mean age of all his students is 28. His doubting colleagues suspect this average may be too high so they select a sample of 81 students. They find the mean age of the sample is 25.58 with a standard deviation of 7.84. Test the claim at the 0.05 significance level. Part A- Ho: H = Part B - Ha: H Part C-State alpha
Mr Stat makes a claim the mean age of all his students is 28. His doubting colleagues suspect this average may be too high so they select a sample of 81 students. They find the mean age of the sample is 25.58 with a standard deviation of 7.84. Test the claim at the 0.05 significance level. Part A- Ho: H = Part B - Ha: H Part C-State alpha
MATLAB: An Introduction with Applications
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![QUESTION 11
Mr Stat makes a claim the mean age of all his students is 28. His doubting colleagues suspect this average may be too high so they select a
sample of 81 students. They find the mean age of the sample is 25.58 with a standard deviation of 7.84. Test the claim at the 0.05 significance
level.
Part A - Ho: H =
%3D
Part B - Ha: H
Part C- State alpha
(Answer f should be the inequality
Part D- Reject null if
%3D
symbol, and Answer g should be the value.)
Part E- The test statistic is
Either Reject the null or Accept the null
Part F- Write the decision
there is evidence to
Part G- At X =
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff5fb381f-811c-41ea-92d9-ccdf3c6fabee%2F59f74404-d142-45d2-8c69-43b9ad5b4f01%2Fqbe8mop_processed.jpeg&w=3840&q=75)
Transcribed Image Text:QUESTION 11
Mr Stat makes a claim the mean age of all his students is 28. His doubting colleagues suspect this average may be too high so they select a
sample of 81 students. They find the mean age of the sample is 25.58 with a standard deviation of 7.84. Test the claim at the 0.05 significance
level.
Part A - Ho: H =
%3D
Part B - Ha: H
Part C- State alpha
(Answer f should be the inequality
Part D- Reject null if
%3D
symbol, and Answer g should be the value.)
Part E- The test statistic is
Either Reject the null or Accept the null
Part F- Write the decision
there is evidence to
Part G- At X =
%3D
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