Let be the mean annual salary of major league baseball players for 2002. assume that the standard deviation of the salaries of these players is . what is the probability that the 2002 mean salary of a random sample of baseball players was within of the population mean, . assume that .
start fraction n over upper n end fraction less-than-or-equal-to 0.05 .
round your answer to two decimal places

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.

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.

Find │–14│ a. 14 b. –14 c. start fraction 1 over 14 end fraction