Test Hypotheses About a Population Proportion
-A Shipping Firm Suspects $1,000,000$

Short Answer

Test Hypotheses about a Population Proportion
-A shipping firm suspects that the variance for a certain brand of tire used by its trucks is greater than $1,000,000$ . To check the claim, the firm puts 101 of these tires on its trucks and gets a standard deviation of 1200 miles. At $\alpha = 0.05$ , test the shipping firm's claim.