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    BA 501,Techniques in Business & Economics, Statistics

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    A survey of 144 retail stores revealed that the average price of a DVD was $375 with a standard error of $20. What is the 99% confidence interval to estimate the true cost of the DVD?

    $323.40 to $426.60

    $328.40 to $421.60

    $335.00 to $415.00

    $335.80 to $414.20

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    https://brainmass.com/business/business-math/ba-501-techniques-business-economics-80292

    Solution Preview

    N = 144
    M = 375
    SE = 20
    the 99% two tailed t value with df = ...

    Solution Summary

    This solution discusses techniques in business and economics.

    $2.19

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