Explore BrainMass

Explore BrainMass

    Sample size for mean estimation

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    An automobile manufacturer wants to estimate the mean gasoline mileage that its customers will obtain with its new compact model. How many sample runs must be performed in order that the estimate be accurate to within 0.25 mpg at 90% confidence? (Assume that σ = 2.0.)

    © BrainMass Inc. brainmass.com September 29, 2022, 1:51 pm ad1c9bdddf
    https://brainmass.com/statistics/sample-size-determination/sample-size-for-mean-estimation-230221

    SOLUTION This solution is FREE courtesy of BrainMass!

    Please see the attachments

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com September 29, 2022, 1:51 pm ad1c9bdddf>
    https://brainmass.com/statistics/sample-size-determination/sample-size-for-mean-estimation-230221

    Attachments

    ADVERTISEMENT