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Thirteen students were randomly selected from the College of Public Health and their diastolic blood pressure was tested. The sample mean and standard deviation were 80.9 mmHg and 2.1 mmHg respectively. What is the obtained t-score for this sample under the null hypothesis Ho: µ = 80?
An observational study is conducted to investigate the association between age and total serum cholesterol. The correlation is estimated at r=0.35. The study involves n=125 participants and the mean (std dev) age is 44.3 (10.0) years with an age r..
Prove that a sequence { fn } of integrable functions satisfies ( | fn - f | dµ → 0 if and only if both fn → f in measure and the fn are uniformly integrable.
Find the probability that, according to this model, a couple who continue to have children until they have a boy will have more than 5 children.
Assume that the test results shown in Example 15.1 are random samples from normal populations. (1) At a signi?cance level of α = 0.05, test the hypothesis that the mean score for trainees using method A is μA = 75,
the world series of baseball is to be played by team a and team b. the first team to win 4 games wins the series out
a company that manufactures bookcases finds that the average time it takes an employee to build a bookcase is 23 hours
the degenerative disease osteoarthritis most frequently affects weight-bearing joints such as the knee. the following
a biologist is investigating the effect of potential plant hormones by treating 20 stem segments. at the end of the
What is the lowest raw score that a client must have on Anxiety Scale A in order to be admitted into this new group? Also assuming some clinics use Anxiety Scale B and often refer their clients to Mary, what is the cutoff point (lowest raw score) ..
Compute an exponential smoothing forecast with a =.20, an adjusted exponential smoothing forecast with a = .20 and B =.20 and a linear forecast. Compare the three forecast, using MAD and average error (E) and indicate which seem to be most accurat..
in an illustration of normal probabilty distribution a shaded are represents
Describe what you find then produce an ANOVA for the problem.
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