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Laith Ghannoom
Normal Distribution - Empirical Rule
May 02, 11:53:18 PM
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At a local restaurant, the amount of time that customers have to wait
for their food is normally distributed with a mean of 34 minutes and a
standard deviation of 5 minutes. Using the empirical rule, determine
the interval of minutes that the middle 95% of customers have to wait.

Find dy/dx using implicit differentiation ln(20+e^xy)=y

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school