Question

Write out the null and alternative hypotheses you would test in each of the following situations AND give the lecture number (e.g., L10.1.1) in the notes where the appropriate test procedure is introduced. Make sure to include a careful definition of the target parameters and any variables referenced in your hypotheses. 1(a). Twenty percent (20%) 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. 1(b). A researcher wonders whether the average farm size (in acres) is larger in Johnson County than in Story County. 1(c). A sample of businesses in Minneapolis will be taken to see

          Write out the null and alternative hypotheses you would test in each of the following situations AND give the lecture number (e.g., L10.1.1) in the notes where the appropriate test procedure is introduced. Make sure to include a careful definition of the target parameters and any variables referenced in your hypotheses. 1(a). Twenty percent (20%) 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. 1(b). A researcher wonders whether the average farm size (in acres) is larger in Johnson County than in Story County. 1(c). A sample of businesses in Minneapolis will be taken to see

Added by Mary C.

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