SOLUTION: It has been determined that 37 out of 100 adult Americans that did not attend college believe in extra-terrestrials. However, from a random sample of 100 adult Americans that did n

Algebra ->  Probability-and-statistics -> SOLUTION: It has been determined that 37 out of 100 adult Americans that did not attend college believe in extra-terrestrials. However, from a random sample of 100 adult Americans that did n      Log On


   

Question 1177275: It has been determined that 37 out of 100 adult Americans that did not attend college believe in extra-terrestrials. However, from a random sample of 100 adult Americans that did not attend college 43 claim that they believe in extra-terrestrials. Does this indicate that the proportion of people who did not attend college and who believe in extra-terrestrials has changed? Conduct a hypothesis test with a = 0.01 and interpret the results.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi
Ho:  p = .37
Ha:  p > .37
 a = 0.01  0r z = 2.3263
x = .43
z = ( .43-.37)/sqrt(.37*.63/100) = 1.2427
p-value = P(z < 1.2427) = .893
Since p-value is greater than 1%, fail to reject Ho.

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