A random sample of n = 1000 observations from a binomial population produced x = 279.

a. If your research hypothesis is that p is less than .3, what should you choose for your alternative hypothesis? Your null hypothesis?

b. What is the critical value that determines the rejection region for your test with α = .05?

c. Do the data provide sufficient evidence to indicate that p is less than .3? Use a 5% significance level.

a. If your research hypothesis is that p is less than .3, what should you choose for your alternative hypothesis? Your null hypothesis?

b. What is the critical value that determines the rejection region for your test with α = .05?

c. Do the data provide sufficient evidence to indicate that p is less than .3? Use a 5% significance level.

Introduction to Probability and Statistics

14th edition

Authors: William Mendenhall, Robert Beaver, Barbara Beaver

ISBN: 978-1133103752

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