(Refer to HW6 #6) According to a survey, 73 males out of 786 and 43 females...
(Refer to HW6 #6) According to a survey, 73 males out
of 786 and 43 females out of 943 report that
they usually drive 10 or more miles per hour over the speed limit
in Kansas City. We are interested
in comparing the proportion of male speeders with the proportion of
the female speeders.
Is the proportion of male speeders higher than the proportion of
female speeders? Perform a
hypothesis testing at 6% significance level by answering the
following questions.
(a) Define the p1 and p2 in the context of the problem.
(b) Formulate the null and alternative hypothesis.
(c) State the test statistic and its approximate
distribution.
(d) Determine the critical value for α = .06 and state the decision
rule.
(e) Calculate the observed value of the test statistic from the
sample.
(f) State whether H0 is rejected and tell why.
(g) Calculate the P-value and do the hypothesis testing based on
the P-value.
(h) Express the conclusion in the context of the problem, using
common English
Homework Answers
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(Refer to HW6 #6) According to a survey, 73 males out
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