Author Question: Use the normal approximation to the binomial distribution to answer this question. Fifteen percent ... (Read 37 times)

karlynnae · **on:** Jun 24, 2018

Use the normal approximation to the binomial distribution to answer this question. Fifteen percent of all students at a large university are absent on Mondays. If a random sample of 12 names is called on a Monday, what is the probability that four students are absent?
a. 0.0683
b. 0.0213
c. 0.0021
d. 0.1329

Question 2

Consider the following information. SSTR = 6750 H0: 1 = 2 = 3 = 4 SSE = 8000 Ha: At least one mean is different If n = 5, the mean square due to error (MSE) equals
a. 400.
b. 500.
c. 1687.5.
d. 2250.