Question 4 (Mandatory) (1 point) A health researcher read that a 200-pound male can burn an average of 546 calories per hour playing tennis. Twenty six males were randomly selected and tested. The mean of the number of calories burned per hour was 544 8. Test the claim that the average number of calories burned is actually less than 546. The sample standard deviation is 3, and assume normal distribution. Which of the following test statistics should be used? O X-545 OF F-444 SINN Question 5 (Mandatory] (1 point) A health researcher read that a 200-pound male can burn an average of 546 calories per hour playing tennis. Twenty six males were randomly selected and tested. The mean of the number of calories burned per hour was 544.0. Test the claim at 0.05 significance level that the average number of calories burned is actually less than 546. The sample standard deviation is 3, and assume normal distribution. What is the observed value of the test statistic? O-1.7081 -1.6450 O-2.0396 1.6 Question 6 (Mandatory) (1 point) A health researcher read that a 200-pound male can burn an average of 546 calories per hour playing tennis. Twenty six males were randomly selected and tested. The mean of the number of calories burned per hour was 544.8. Test the claim at 0.05 significance level that the average number of calories burned is actually less than 546. The sample standard deviation is 3, and assume normal distribution. Which of the following should be the rejection region of the test? OT : 1.7081 OZ : 1.645 OT:-1.7081 OZ:-1.645 OT : 1.7081