5.7 1-al2 ne ES 3S Alpha 0 5 84 ES = nu San aliacodomou 2. An investigator wants to estimate caffeine consumption in high school students. How man students would be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 2%ofthe true proportion with 95% confidence 2- 8. 1 Alpha 15 50A95)- (1-0.5)(19 E= n= 335 35 (153644) 32 oni su 3. A crossover trial is planned to evaluate the impact of an educational intervention program to reduce alcohol consumption in patients determined to be at risk for alcohol problems. The plan is to measure alcohol consumption (the number of drinks on a typical drinking day) before the

Susan's bioloy class begins with 1225 students. If 5/7 will finish the course and 2/25 of those get a passon grade, how many students will pass Susan's bioloy class this term?

Please number 4.

for question 3, I understand how we get 2 pie / 3 but how did you get 4 pie/3?

How did you find the 1.6 in the first part of the problem?

Betty's athletic trainer told her to follow the beginning exercise training schedule on day 1. On day 2, she is to increase all distances and times by that 1 4 of day 1. On day 3, she is to increase all distances and 1 times by that of day 2. What will be her training schedule on day 3? On day 1, each athlete will begin the morning as follows: 1 Jog.......2 mi 1-min 1 Walk.....1mi 2nd Walk.…..1 mi Rest....1

For the remainder of this question, we will consider one of the world's most popular video games, Minecraft (adapted from Mills & Mills, 2016). In this game, the character (you) can attempt to tame a wolf with a bone. Assume that you get 9 tries to tame the wolf, i.e. there are 9 bones. Each time you tame the wolf, the wolf becomes a dog and a new wolf appears which you can then attempt to also tame. This continues until you have used up all 9 bones, and the goal is to end up with as many dogs as possible at the end of the game. The probability of taming the wolf with each attempt is fixed at 0.54. Let X denote the number of dogs at the end of the game so that X~ BIN (9,0.54). Assume you are about to play the game. 15. The probability that you will tame some number a or less dogs is 0.66144. What must be (round to the nearest whole number)?