ACTIVITY/ Lesson Topic: HYPOTHESIS TESTING Solve the following problems. Show your complete solution 1. Decide whether to reject or accept H. using the following information u = 40, x = 39.5, o = 1.97 and n = 40. Use left tailed test and level of significance a = 0.05. 2. A soda company distributes diet cola in bottles label 32 oz. The Department of Trade and Industry randomly selects 50 of these bottles, measures the contents, and obtains a sample mean of 31.0 oz. Assuming that o is known to be 75 oz, is it valid at 0.01 significance level to conclude that the soda company is cheating on its consumers? 3. A consumer claims that the tires produced by a certain company is last less than 40,000 miles. A test on 35 tires reveals that the mean life of a tire is 39,750 miles, With a standard deviation of 387 miles. Test the Manufacturer's claim at a = 0.01