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(Question 7) 2 pts In a sample of 41 temperature readings taken from the freezer of a restaurant, the mean is 29.7 degrees and the standard deviation is 2.7 degrees. What would be the 80% confidence interval for the temperatures in the freezer? (29.16, 30.24) (24.30, 35.10) (27.00, 32.4) (31.36, 32.44) Flag this Question

(Question 8) 2 pts What is the 99% confidence interval for a sample of 36 seat belts that have a mean length of 85.6 inches long and a standard deviation of 2.5 inches? (83.1, 88.1) (84.5, 86.7) (80.6, 90.6) (84.4, 86.8) Flag this Question

(Question 9) 2 pts If two samples A and B had the same mean and standard deviation, but sample A had a smaller sample size, which sample would have the wider 95% confidence interval? Sample A as it has the smaller sample Sample B as its sample is more disperse Sample B as it has the larger sample Sample A as it comes first

Answer 1