Explore BrainMass

Explore BrainMass

    Estimation: Confidence Interval for the mean.

    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!

    In a certain manufacturing process, the diameter of holes drilled in a steel plate is a normally distributed random variable. The process standard deviation is known to be s =0.005 cm. A sample of 15 plates shows a mean hole diameter of 2.475 cm. Find the 95 percent confidence interval for Mean (M).

    © BrainMass Inc. brainmass.com March 4, 2021, 8:27 pm ad1c9bdddf
    https://brainmass.com/statistics/confidence-interval/estimation-confidence-interval-mean-169529

    Solution Preview

    In a certain manufacturing process, the diameter of holes drilled in a steel plate is a normally distributed random variable. The process standard deviation is known to be s =0.005 cm. A sample of 15 plates shows a mean hole diameter of 2.475 cm. Find the 95 ...

    Solution Summary

    95 percent confidence interval for Mean has been calculated. The expert provides estimations.

    $2.49

    ADVERTISEMENT