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    Confidence intervals for the population mean

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    The owner of Britten's Egg Farm wants to estimate the mean number of eggs laid per chicken. A sample of 18 chickens shows they laid an average of 25 eggs per month with a standard deviation of 7 eggs per month.

    (a-1) What is the value of the population mean?

    It is unknown.
    25
    7

    (a-2) What is the best estimate of this value?

    Best estimate

    (c) For a 95% confidence interval, what is the value of t? (Round your answer to 3 decimal places.)

    Value of t

    (d) Determine the 95% confidence interval for the population mean. is (Round your answers to 2 decimal places.)

    Confidence interval to

    (e-1) Would it be reasonable to conclude that the population mean is 19 eggs?

    No
    Yes

    (e-2) What about 22 eggs?

    No
    Yes

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    Solution Preview

    (a-1) What is the value of the population mean?

    Answer: it is unknow as the value is not given in the question.

    (a-2) What is the best estimate of this value?

    Answer: Best estimate is the sample mean which is 25.

    (c) ...

    Solution Summary

    The expert examines confidence intervals for a population mean.

    $2.19