Author Question: A binomial distribution has p = 4/5. How large a sample would be necessary to justify using the ... (Read 34 times)

dbose · **on:** Jun 20, 2018

A binomial distribution has p = 4/5. How large a sample would be necessary to justify using the normal approximation to the binomial distribution?

A) at least 10
B) at least 13
C) at least 40
D) at least 50

Question 2

For a repeated-measures study comparing two treatment conditions, a researcher obtains a sample of n = 9 difference scores with a mean of MD = 4 and a variance of s2 = 36. What is the value for the repeated-measures t statistic for these data?

A) 4/2
B) 4/4
C) 4/6
D) 4/36