final answer please

Exercise 1 If a fair coin is tossed 50 times. use the normal curve to approximate the probability that the average number of heads is between 24 and 25 inclusive. Exercise 2 Suppose that a machine filling mini-boxes of raisins fills the boxes so that the weight of the boxes has a population mean p, =14-1 grams and a population standard deviation ax :14 grams. It a random sample of 49 boxes is selected, a) what is the probability that the sample will be above 14 grams? b) there is a 99 percent chance that the sample mean will be above what value? c) What assumption is necessary in order to answer (a). (b). Exercise 3 Many cardiac patients wear an implanted pacemaker to control their heartbeat. A plastic connector module mounts on the top of the pacemaker. Assuming a variance of 0.00000225 inch and an approximately normal distribution. a) Find a 92% confidence interval [Le (a, b), a