Problem 12
Control Charts: Yellowstone National Park Yellowstone Park Medical Services (YPMS) provides emergency health care for park visitors. Such health care includes treatment for everything from indigestion and sunburn to more serious injuries. A recent issue of Yellowstone Today (National Park Service Publication) indicated that the average number of visitors treated each day by YPMS was 21.7. The estimated standard deviation was 4.2 (summer data). The distribution of numbers treated is approximately mound-shaped and symmetrical. (a) For a 10-day summer period, the following data show the number of visitors treated each day by YPMS: Day 1 2 3 4 5 6 7 8 9 10 Number treated 25 19 17 15 20 24 30 19 16 23 Make a control chart for the daily number of visitors treated by YPMS, and plot the data on the control chart. Do the data indicate that the number of visitors treated by YPMS is in control? Explain your answer. (b) For another 10-day summer period, the following data were obtained: Day 1 2 3 4 5 6 7 8 9 10 Number treated 20 15 12 21 24 28 32 36 35 37 Make a control chart, and plot the data on the chart. Do the data indicate that the number of visitors treated by YPMS is in control or out of control? Explain your answer. Identify all out-of-control signals by type (I, II, or III). If you were the park superintendent, do you think YPMS might need some (temporary) extra help? Explain.
Step-by-Step Solution:
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ST 512: Week One Notes MaLyn Lawhorn August 16, 2017 Estimates and Estimators ▯ Estimating occurs when we need to approximate an unknown parameter ▯ ▯ to estimate, we use data that comes in the form of random variable Y , Y , Y , ▯▯▯, Y . 1 2 3 N ▯ An estimator is the algorithm, function, or equation used to approximate ▯. ▯ An estimate is the numerical output of the estimator. Example 1 Consider the following data set of the ages that a group of individuals got married: 23, 27, 29, 26, 31, 23, 24, 24, 29, 23, 27, 30, 30, 29, 25 Suppose we wanted to find the true mean ▯ of when an individual gets marri
Since the solution to 12 from 6.1 chapter was answered, more than 928 students have viewed the full step-by-step answer. The answer to “Control Charts: Yellowstone National Park Yellowstone Park Medical Services (YPMS) provides emergency health care for park visitors. Such health care includes treatment for everything from indigestion and sunburn to more serious injuries. A recent issue of Yellowstone Today (National Park Service Publication) indicated that the average number of visitors treated each day by YPMS was 21.7. The estimated standard deviation was 4.2 (summer data). The distribution of numbers treated is approximately mound-shaped and symmetrical. (a) For a 10-day summer period, the following data show the number of visitors treated each day by YPMS: Day 1 2 3 4 5 6 7 8 9 10 Number treated 25 19 17 15 20 24 30 19 16 23 Make a control chart for the daily number of visitors treated by YPMS, and plot the data on the control chart. Do the data indicate that the number of visitors treated by YPMS is in control? Explain your answer. (b) For another 10-day summer period, the following data were obtained: Day 1 2 3 4 5 6 7 8 9 10 Number treated 20 15 12 21 24 28 32 36 35 37 Make a control chart, and plot the data on the chart. Do the data indicate that the number of visitors treated by YPMS is in control or out of control? Explain your answer. Identify all out-of-control signals by type (I, II, or III). If you were the park superintendent, do you think YPMS might need some (temporary) extra help? Explain.” is broken down into a number of easy to follow steps, and 249 words. This full solution covers the following key subjects: . This expansive textbook survival guide covers 57 chapters, and 994 solutions. This textbook survival guide was created for the textbook: Understandable Statistics, edition: 9. The full step-by-step solution to problem: 12 from chapter: 6.1 was answered by , our top Statistics solution expert on 01/04/18, 09:09PM. Understandable Statistics was written by and is associated to the ISBN: 9780618949922.
