A small, independent amusement park collects data on the number of cars with out-of-state license plates. The sample size is fixed at n=25 each day. Data from the previous 10 days indicate the following number of out-of-state license plates:DayOut-of-state Plates162435475863748593102Calculate the overall proportion of "tourists" (cars with out-of-state plates) and the standard deviation of proportions.Using 95% limits, calculate the LCL and UCL for these data.Is the process under control? Explain.

Answer given below: n= 25 no. of days = 10

Answered: A small, independent amusement park…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

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Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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A small, independent amusement park collects data on the number of cars with out-of-state license plates. The sample size is fixed at n=25 each day. Data from the previous 10 days indicate the following number of out-of-state license plates:

Day	Out-of-state Plates
1	6
2	4
3	5
4	7
5	8
6	3
7	4
8	5
9	3
10	2

Calculate the overall proportion of "tourists" (cars with out-of-state plates) and the standard deviation of proportions.
Using 95% limits, calculate the LCL and UCL for these data.
Is the process under control? Explain.

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