Week 6 assignment sampling distribution

 

Week 6 Activity

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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