The manufacturer of a new line of inkjet printers would like

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 catridge. A sample of 10 cartridges revealed the following number of pages printed. 3.690 2.560 2.550 2.610 3.390 2.500 2.440 3.430 3.170 3.280 What is the point estimate of the population mean? Develop a 96 percent confidence interval for the population mean.

Solution

Let us find mean and std deviation for the given data.

Total entries =10

Mean = 2961

Std dev = 449.19

Margin of error =