Write the null and alternative hypotheses you would use to test each situation. a) In the 1950s,

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Write the null and alternative hypotheses you would use to test each situation.
a) In the 1950s, only about 40% of high school graduates went on to college. Has the percentage changed?
b) Twenty percent of cars of a certain model have needed costly transmission work after being driven between 50,000 and 100,000 miles. The manufacturer hopes that a redesign of a transmission component has solved this problem.
c) We field-test a new-flavor soft drink, planning to market it only if we are sure that over 60% of the people like the flavor.
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Stats Data And Models

ISBN: 662

4th Edition

Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock

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