Question 923326: The owner of Britten's Egg Farm wants to estimate the mean number of eggs laid per chicken. A sample of 20 chickens shows they laid an average of 22 eggs per month with a standard deviation of 2.79 eggs per month.
(a-2) What is the best estimate of this value?
(c)
For a 95 percent confidence interval, the value of t is . (Round your answer to 3 decimal places.)
(d)
The 95 percent confidence interval for the population mean is to (Round your answers to 3 decimal places.)
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 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. A sample of 10 cartridges revealed the following number of pages printed.
3,250 ; 2,450 2,550 ; 2,500 ; 2,400 ; 2,610 ; 2,990 ; 3,320 ; 3,170 ; 2,730
sum = 27970
mean = 27970/10 = 2797
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(a)
What is the point estimate of the population mean? (Round your answer to the nearest whole number.)
u = 2797
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Estimated population mean = 2797
(b)
Develop a 95 percent confidence interval for the population mean. (Round your answers to 2 decimal places.)
95%CI:: 2797 - 1.96*353/sqrt(10) < u < 2797 + 1.96*353/sqrt(10)
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Cheers,
Stan H.
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Confidence interval for the population mean is between .... and .....
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