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Author Question: The normal approximation to the binomial distribution is most useful for finding which of the ... (Read 168 times)

clmills979

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on: Jul 24, 2018
The normal approximation to the binomial distribution is most useful for finding which of the following?
 a. The probability P(X = k) when X is a binomial random variable with small n.
  b. The probability P(X  k) when X is a binomial random variable with large n.
  c. The probability P(X = k) when X is a normal random variable with small n.
  d. The probability P(X  k) when X is a normal random variable with large n.

Question 2

A randomly selected sample of 60 mathematics majors spent an average of 200.00 for textbooks one term, while during the same term, a randomly selected sample of 40 literature majors spent an average of 180.00 for textbooks. The standard deviation for each sample was 20.00 . The standard error for the difference between the two sample means is
 a. 0.057
  b. 4.082
  c. 5.744
  d. 16.663


marict

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

B


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