Question: A random survey of 100 students asked each student to
A random survey of 100 students asked each student to select the most preferred form of recreational activity from five choices. Following are the results of the survey:
Test whether the choice is independent of the gender of the respondent. Approximate the p-value of the test. Would we reject the null hypothesis at α = 0.05?
Answer to relevant QuestionsIf P(A) = 0.4, P(B) = 0.5, and P(A ∩ B) = 0.3, find (a) P(A ∪ B), (b) P(A ∩ B’), and (c) P(A’ ∪ B’). A student who uses a certain college’s recreational facilities was interested in whether there is a difference between the facilities used by men and those used by women. Use α = 0.05 and the following data to test the ...Ledolter and Hogg report that a civil engineer wishes to compare the strengths of three different types of beams, one (A) made of steel and two (B and C) made of different and more expensive alloys. A certain deflection (in ...9 . 5 - 4 . Ledolter and Hogg (see References) note that percent yields from a certain chemical reaction for changing temperature (factor A), reaction time (factor B), and concentration (factor C) are x1 = 79.7, x2 = 74.3, ...It is necessary to control the percentage of solids in a product, so samples are taken randomly throughout the day and the percentage of solids is measured. Use the following 20 sets of 5 observations for this exercise: (a) ...
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