Week 6 Assignment Sampling Distribution

 
Week 6 Activity

Sampling Distribution

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A computer scanner can read a bar code on a package correctly 97% of the time. One company monitors the accuracy of the scanner by randomly sampling packages and verifying that each package has been correctly scanned. Random samples of size n = 25, 50, 100, and 200 have recently been taken with the following results.
Sample Size,   n 
Number Correctly   Scanned 
25
24
50
49
100
95
200
193
To complete this activity, use Excel to:

1. Calculate the sample proportion for each sample size. 
2.Calculate the single-proportion sampling error for each sample size. 
3.Calculate the probability of finding 198 correctly scanned packages, for a sample of size n=200. 
4.Submit your work Excel file.

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