A random sample of 32 persons attending a certain diet clinic was found to have lost, over a three week period, an average of 30 pounds with a sample standard deviation of 11 pounds. Calculate a 99% confidence interval estimate of the true mean weight loss, over a three-week period, experienced by all persons attending the clinic. You may assume that the distribution of weight loss is normal.

How many days was the temperature above 90 degrees?

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

52 cm radius = diameter = area = circumference = circumfer