each hypothesis test you complete, please answer questions (a) through (i) listed below. (a)What conditions should you check first before you con- duct the hypothesis test? (b) Write the null and alternative hypotheses. (c) What type of test are you doing: right-tailed, left-tailed or two-tailed?
For each hypothesis test you complete, please answer questions (a)
through (i) listed below.
(a)What conditions should you check first before you con-
duct the hypothesis test?
(b) Write the null and alternative hypotheses.
(c) What type of test are you doing: right-tailed, left-tailed
or two-tailed?
(d) What formula should be used for the test statistic?
(e) What number is the test statistic equal to?
(f) Sketch a graph of the p-value
(g) What p-value do you obtain? Round to the ten-thousandths.
(h) Do you reject the null hypothesis or fail to reject the
null hypothesis? Explain.
(i) Please write a conclusion sentence, in the context of the
problem, that explains to a lay person the result of the hypothesis
test.
4. In a 4-week study about the effectiveness of using magnetic
insoles to treat plantar heel pain, 54 subjects wore magnetic insoles and
41 subjects wore nonmagnetic insoles. The results are shown below.
At the one percent level of significance, can you support the claim that
there is a difference in the proportion of subjects who feel all or mostly
better between the two groups? (Adapted from The Journal of the
American Medical Association)
Please answer A B C
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