State the null hypothesis and the alternative hypothesis. b. Is the test left-tailed, right-tailed, or two-tailed? c. Find the test value
State the null hypothesis and the alternative hypothesis. b. Is the test left-tailed, right-tailed, or two-tailed? c. Find the test value
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
7.) It is believed that 30% of drivers in the country make an insurance claim in any given year. An insurance company examines a sample of 200 of its policyholders, and finds that 64 of them made claims last year. Based on this, is there enough evidence to say that the claim rate for this company’s policyholders is higher than for the country overall with = 0.05?
a. State the null hypothesis and the alternative hypothesis.
b. Is the test left-tailed, right-tailed, or two-tailed?
c. Find the test value
d. Find the critical value or p value
e. Should you reject the null hypothesis?
f. Summarize the results
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