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1.Consider a one-tailed hypothesis test, with a critical Z of -2.33. Which of the following is true about the hypothesis test?
1.Consider a one-tailed hypothesis test, with a critical Z of -2.33. Which of the following is true about the hypothesis test?
2.John is a very good driver of the golf ball. He has historically hit an average of 16.00 fairways per round with his drives. The number of fairways hit follows a normal distribution (mean of 16.00) and has a standard deviation of 0.15 drives. John recently broke his driver and is using a new model. In a sample of 50 rounds with the new driver, he has hit the fairways an average of 15.96 times. Does the evidence suggest that John has become less accurate? (Hint: the alternate hypothesis is u < 16.00.) Use the 5% significance level.
What is the critical value of Z?
