Question

In: Statistics and Probability

The manufacturer of a new line of ink-jet printers would like to include as part of...

  1. The manufacturer of a new line of ink-jet printers would like to include as part of its advertising the number of pages a user can expect from a print cartridge. The results from a sample of 14 cartridges can be found in the Excel test data file.

  1. What are the point estimates for the population mean and population standard deviation?

____________________________________________________________

  1. Develop a 95% interval for the population mean.

____________________________________________________________

  1. If the point estimate of the population mean and standard deviations are accurate, what is the probability that another sample of 14 cartridges will last an average of more than 1750 pages?
Page Count
1991
1604
1355
2207
1496
2164
1792
2249
1300
1702
1351
1464
1606
1419

Solutions

Expert Solution

( a )

point estimates for the population mean = x bar = 1692.86

point estimates for the population standard deviation = s = 335.2762

( b )

95% interval for the population mean. is =(1499.277,1886.443)

( c )

orchestra answered 3 years ago
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