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The function below represents the balance of a savings account, which is compounded continuously at an annual interest rate, t
years after an initial deposit of $5,000.
A(t) = $5,000e0.127
What is the approximate average rate of change over the interval [5, 20]?
OA. $1,097.76 per year
ОВ.
$2,569.06 per year
OC. $46,005.29 per year
OD. $3,067.02 per year
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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.