The package of Ecosmart Led 75-watt replacement bulbs that use only 14 watts claims that these bulbs
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The package of Ecosmart Led 75-watt replacement bulbs that use only 14 watts claims that these bulbs have an average life of 24,966 hours. Assume that the lives of all such bulbs have an approximate normal distribution with a mean of 24,966 hours and a standard deviation of 2000 hours. Let x be the average life of 25 randomly selected such bulbs. Find the mean and standard deviation of x, and comment on the shape of its sampling distribution.
DistributionThe word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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