Assuming that the tire mileage is normally distributed and the mean number of miles to failure is not known and a known σ = 3,700 miles. Using your sample of 41 tires as your estimate of the mean (X Bar); what is the upper and lower bound of a 95% confidence interval? (This was your Question #2): Suppose when you did this this calculation you found the ERROR to be too large and would like to limit the error to 1000 miles. What should my sample size be?

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

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.

Spencer has 1/3 pound of nuts he divides them equally into 4 bags what fraction of a pound of nuts is in each bag