15. Suppose that you are testing the hypotheses 0.20 vs. A sample of size 250 results in...
Question:
15. Suppose that you are testing the hypotheses 0.20 vs. A sample of size 250 results in a sample proportion of 0.25.
a) Construct a 95% confidence interval for p.
HA: p Z 0.20.
H0: p =
H0: p = 0.2 HA: p 6 0.2 a = 0.01.
H0: p = 0.5 HA: p 6 0.5 a = 0.01; n = 500.
H0: p = 0.6 HA: p Z 0.6 a = 0.01.
H0: p = 0.05 HA: p 7 0.05 a = 0.05.
H0: m = 105 HA: m Z 105 a = 0.05; n = 61.
H0: m = 20 HA: m 6 20 a = 0.01; n = 1000.
H0: p = 0.5 HA: p 7 0.5 a = 0.01; n = 345.
H0: m = 10 HA: m Z 10 a = 0.05; n = 36.
H0: p = 0.4 HA: p 7 0.4 a = 0.05.
H0: p = 0.5 HA: p Z 0.5 a = 0.05.
a = 0.05?
b) Based on the confidence interval, at can you reject Explain.
c) What is the difference between the standard error and standard deviation of the sample proportion?
d) Which is used in computing the confidence interval?
Step by Step Answer:
Business Statistics
ISBN: 9780321716095
2nd Edition
Authors: Norean D. Sharpe, Paul F. Velleman, David Bock, Norean Radke Sharpe