Researchers are investigating whether high-risk patients have strokes or not depending on which of two drugs they take. Sample subjects are randomly assigned to take Drug A or to take Drug B. The number of subjects who had a stroke in a five year period is counted. Researchers want to check whether the two categorical variables (having a stroke or not; which of drug A or B is taken) are related. Test at the 0.1 significance level.Table of number of people in each sub-category.DataDrug ADrug BHad stroke1324No stroke107106a) Identify the correct alternative hypothesis for this test.There is a relationship between having a stroke and which drug is taken.Having a stroke and which drug is taken are independent.There is no relationship between having a stroke and which drug is taken.Having a stroke varies much more than the proportions for which drug is taken.Round numeric answers to 3 decimal places.b) The χ2test statistic value is: c) The P-value is:

Answered: Image /qna-images/answer/65d0bc43-283a-4425-877c-678573180267.jpg

Answered: Researchers are investigating whether…

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

Related questions

Question

Researchers are investigating whether high-risk patients have strokes or not depending on which of two drugs they take. Sample subjects are randomly assigned to take Drug A or to take Drug B. The number of subjects who had a stroke in a five year period is counted. Researchers want to check whether the two categorical variables (having a stroke or not; which of drug A or B is taken) are related. Test at the 0.1 significance level.

Table of number of people in each sub-category.

Data	Drug A	Drug B
Had stroke	13	24
No stroke	107	106

a) Identify the correct alternative hypothesis for this test.

There is a relationship between having a stroke and which drug is taken.
Having a stroke and which drug is taken are independent.
There is no relationship between having a stroke and which drug is taken.
Having a stroke varies much more than the proportions for which drug is taken.

Round numeric answers to 3 decimal places.

b) The χ2test statistic value is:

c) The P-value is:

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Chi-squared Tests$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions