A small independent amusement park collects data

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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:
1
2
3
4
5
6
7
8
9
10

Out of state plates:
6
4
5
7
8
3
4
5
3
11

a.) calculate the overall proportion of "tourists" (cars with out of state plates) and the standard deviation of proportions
b.) using +_3(pie) calculate the LCL and UCL for these data
c.) is the process control under control?

Reference no: EM13521465

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