a sample of 100 pregnancies were found to take an average of 267 days. the population deviation is known to be 13 days. find a 90% confidence interval for the true population mean.

Art drinks 2 quarts of milk every 3 days. How many days will it take him to drink 3 gallons of milk? How do I show my work?

Jamal runs 1 2/5 miles a day to train a race. If he runs the same distance for 3 days a week, what is the distance he runs in one week?

two garden plots are to have the same area. One is square and one is rectangle. the rectangle plot is 4 meters wide and 9 meters long. How large is one side of the square garden plot in meters?

Dustin had five outstanding checks that totaled $117.54. What should his check register balance be if he had an ending balance of $599.43 and outstanding deposits that totaled $235.14?

I have 4 consecutive integers whose sum is 52 how do i do this?

a square pizza box has a width of 24 in. What is the area of the largest circular pizza that could fit in the box?

The temperature of a city changed by - 15 degrees Celsius over a 5-week period. The temperature changed by the same amount each week. Write an expression to show the average change in the temperature of the city each week.

The sum of a number and two is equal to the quotient of six and negative four

17 divided by the quantity Z minus 34 what is the expression for the phase

Round 0.9998 to 3 decimal places