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.
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.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.2: Representing Data
Problem 24PFA
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16. More hypotheses 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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