Business, 24.05.2021 14:00, vlactawhalm29

A state department of tourism and recreation collects data on the number of cars with out-of-state license plates in a state park. (The group's position is that more out-of-state plates means the state's advertising programs are working.) The sample size is fixed at n =100 each day. Data from the previous 20 days indicate the following number of out-of-state license plates: Day Plates
1 24
2 33
3 18
4 21
5 26
6 31
7 15
8 18
9 23
10 13

Required:
a. Calculate the overall proportion of "tourists" (cars with out-of-state plates).
b. Calculate the LCL and UCL for these data. Use 3-sigma control limits.
c. Plot the control chart. Are all points within the control limits?

Answers: 3

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A state department of tourism and recreation collects data on the number of cars with out-of-state l...