8 An important factor for Japanese farmers is the amount of rice consumed in Japan. Recent findings indicate that urban Japanese are eating less rice every year, while they are eating more meat and dairy products. A Japanese farmers' organization wants to test the null hypothesis that 80% of Japanese families eat rice at least five times a week against the alternative hypothesis that less than 80% of Japanese families eat rice at least five times a week. Designers of the survey want to have a 0.95 probability of rejecting the null hypothesis if 75% of the Japanese families eat rice at least five times a week. The test is carried out at a = 0.05. How large should the sample be?

8 An important factor for Japanese farmers is the amount of rice consumed in Japan. Recent findings indicate that urban Japanese are eating less rice every year, while they are eating more meat and dairy products. A Japanese farmers' organization wants to test the null hypothesis that 80% of Japanese families eat rice at least five times a week against the alternative hypothesis that less than 80% of Japanese families eat rice at least five times a week. Designers of the survey want to have a 0.95 probability of rejecting the null hypothesis if 75% of the Japanese families eat rice at least five times a week. The test is carried out at a = 0.05. How large should the sample be?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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