Mona wants to obtain a 94% confidence interval for the mean weight of turtles. she read in the big book of turtles that the standard deviation of turtle weight is 37 grams. if her confidence interval must have a length of no more than 15, how many turtles must she weigh?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?