Question

In: Statistics and Probability

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

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 here

1168
2265
1346
1814
1286
1611
1083
1216
2028
1498
2411
1145
1708
1685

a. what is the point estimate of the population mean and standard deviation?

b. develop a 90% interval for the population mean

c. if the point estimate of the population mean and standard deviation are accurate, what is the probability that another sample of 14 cartridges will last an average of more than 1650 pages?

please show your work

Solutions

Expert Solution

The point estimate of population mean is given by sample mean and formula is given by

And standard deviation is given by

For the calculation I use the excel and excel sheet and complete ans is given below

orchestra answered 1 year ago
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