A medical researcher is interested in determining if there is a relationship between adults over 50 who exercise regularly and low, moderate, and high blood pressure. A random sample of 300 adults over 50 is selected and the results are given below. Test the claim that regular exercise and low, moderate, and high blood pressure are independent. Use = 0.01

Blood Presure Low. Moderate. High

Reg. Excersise 40. 60. 20

Bo Reg. Excersise 45. 90. 45

X^2 stat=

X^ critical=

Extra Credit : Convert data presented in question (1) into percentages.

The U.S. Military Academy at West Point is one of the nation's most selective colleges, accepting 10% of applicants ( = 10). Out of n = 60 randomly selected applicants to the U.S. Military Academy,

a.) How many would you expect to be accepted? Use the normal distribution to approximate the following binomial probabilities:

b. What is the probability 8 or fewer applicants will be accepted?

c. What is the probability between 5 and 7 will be accepted?

d. What is the probability exactly 6 will be accepted?

No ones answering, this is my 6th attempt at getting this question answered. Please help me this online learning has made it extremely hard for me to learn anything.