For the normal approximation to the binomial distribution with p ...

[RODY.ELKHALIL]

For the normal approximation to the binomial distribution with p = 1/2 and n = 100, what is the z-score corresponding to X = 60?
 
  A) z = 0.4
  B) z = 2.0
  C) z = 0.2
  D) z = 1.0

Question 2

A researcher conducts a repeated-measures study to evaluate a treatment with a sample of n = 16 participants and obtains a t statistic of t = 1.94. The treatment is expected to increase scores and the sample mean shows an increase. What is the correct decision for a hypothesis test using  = .05?
 
  A) Reject the null hypothesis with a one-tailed test but fail to reject with two tails.
  B) Reject the null hypothesis with either a one-tailed or a two-tailed test.
  C) Fail to reject the null hypothesis with either a one-tailed or a two-tailed test.
  D) Fail to reject the null hypothesis with a one-tailed test but reject with two tails.

[Anna]

Answer to Question 1

B

Answer to Question 2

A

[RODY.ELKHALIL]

Gracias!

[nyrave]

Excellent