Statistics Methods
DETAILS GIVEN BELOW
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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