ME = 21-a/2 Yes known? ME = 21-a/2 Tn In N(u, o) Yes Is o or o? I Ch 6 Assignment Is Population No Distribution 1. USE P

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Me 21 A 2 Yes Known Me 21 A 2 Tn In N U O Yes Is O Or O I Ch 6 Assignment Is Population No Distribution 1 Use P 1 (154.46 KiB) Viewed 99 times

ME = 21-a/2 Yes known? ME = 21-a/2 Tn In N(u, o) Yes Is o or o? I Ch 6 Assignment Is Population No Distribution 1. USE PAPER AND PENCIL III ME=t (1-3n-1) và AND CALCULATOR. The total Normal ? No Is o or o? Yes waiting time to see a Dr. in a о II known? given hospital is known to When Sample have a normal distribution Size n 30 No with standard deviation 5 Cl results are not reliable mins. However, the mean Increase the Sample Size waiting time u is unknown. We asked 9 people about how long they have waited before seeing the Dr. and collected the following data (in mins). Estimate the mean waiting time (1pts) and construct its 95% CI (5pts), interpret the interval (1pts). 12 8,5 25 17 16 18 16 16.5 21 | 2. USE ONLY THE CALCULATOR. Assume that the weights of 10-year-old children are normally distributed with a standard deviation of 36 pounds. Using the following weights of six 10-year-old kids, what is the confidence interval for the population mean at a 90% confidence level? 70.5 85.6 68.9 102.5 89.0 87.5 Function Output: Function & Inputs: (3pts) (exclude data entry) (2pts) Interpretation (2pts):