A computer scanner can read a barcode on a package


A computer scanner can read a barcode 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 sizes n = 25, 50, 100, and 200 have recently been taken with the following results.

Sample Size, n Number Correctly Scanned 2524504910095200193

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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