Homework Help is Here – Start Your Trial Now!
Math
Statistics
A group conducted a randomized experiment to see if hormone therapy was helpful for post-menopausal women. The women were randomly assigned to receive a hormone or a placebo. After 5 years, 117 of the 8581 on the hormone therapy developed cancer and 91 of the 8244 in the placebo group developed cancer. Is this a significant difference? Complete parts a through c below.

A group conducted a randomized experiment to see if hormone therapy was helpful for post-menopausal women. The women were randomly assigned to receive a hormone or a placebo. After 5 years, 117 of the 8581 on the hormone therapy developed cancer and 91 of the 8244 in the placebo group developed cancer. Is this a significant difference? Complete parts a through c below.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
Question

i need the z and p value

A group conducted a randomized experiment to see if hormone therapy was helpful for post-menopausal women. The women were randomly assigned to receive a hormone or a placebo. After 5 years, 117 of the 8581 on the hormone therapy developed cancer and 91 of the 8244 in the placebo group developed cancer. Is this a significant difference? Complete parts a through c below. a. State the assumptions and the hypotheses. What assumptions about the two samples are necessary for the significance test? OA. The samples are independent, random, and selected from a population that is approximately normal. B. The samples are independent, random, and a point estimate of the population proportion is known. C. The response variable is categorical, and the samples are independent, random, and large enough. OD. The samples are independent, random, and selected from a populations that have the same standard deviation. Let p represent the probability that someone gets cancer. Let p₁ represent the probability that a person who receives hormone therapy gets cancer, and let p2 represent the probability that a person who receives a placebo gets cancer. Write the claim as a hypothesis test. Choose the correct null and alternative hypotheses below. OA. Ho: P₁ = 0 versus Ha: P₁7 1#0 OB. Ho: P₁ C. Ho: P₁ O D. Ho: P₁ P2 versus Ha: P₁ P2 P2 versus Ha: P₁ P₂ P2 versus Ha: P₁1 > P2 b. Find the test statistic and the P-value and interpret. Find the test statistic. Z= (Round to two decimal places as needed.)
Transcribed Image Text:A group conducted a randomized experiment to see if hormone therapy was helpful for post-menopausal women. The women were randomly assigned to receive a hormone or a placebo. After 5 years, 117 of the 8581 on the hormone therapy developed cancer and 91 of the 8244 in the placebo group developed cancer. Is this a significant difference? Complete parts a through c below. a. State the assumptions and the hypotheses. What assumptions about the two samples are necessary for the significance test? OA. The samples are independent, random, and selected from a population that is approximately normal. B. The samples are independent, random, and a point estimate of the population proportion is known. C. The response variable is categorical, and the samples are independent, random, and large enough. OD. The samples are independent, random, and selected from a populations that have the same standard deviation. Let p represent the probability that someone gets cancer. Let p₁ represent the probability that a person who receives hormone therapy gets cancer, and let p2 represent the probability that a person who receives a placebo gets cancer. Write the claim as a hypothesis test. Choose the correct null and alternative hypotheses below. OA. Ho: P₁ = 0 versus Ha: P₁7 1#0 OB. Ho: P₁ C. Ho: P₁ O D. Ho: P₁ P2 versus Ha: P₁ P2 P2 versus Ha: P₁ P₂ P2 versus Ha: P₁1 > P2 b. Find the test statistic and the P-value and interpret. Find the test statistic. Z= (Round to two decimal places as needed.)
Expert Solution
steps

Step by step

Solved in 5 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS