Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

It appears that not all people are equally vulnerable to cancer. People from some ethnic groups have higher or lower than average chances of developing

It appears that not all people are equally vulnerable to cancer. People from some ethnic groups have higher or lower than average chances of developing certain types of cancer. Jennifer's manager Dr. Steinberg thinks that the company's insurance policy should reflect this fact and constantly raises this question in the meetings. To be more convincing, he asked Jennifer Nguyen to take a random sample of those Healthy Life clients who belong to ethnic group X (at least on their maternal or paternal side) and a similar sample consisting of the clients without X ancestry. Then, Jennifer was asked to compare clients' Y parameters indicating likelihood of developing W cancer. (As the matter is ticklish, we will not be naming the ethnic group, the type of cancer, the medical parameter, and the gender of sample members.) Then, it is known that in the general population Y parameters are distributed with the standard deviation of 3.2 (therefore the population variance is equal to 10.24). However, in the X ethnic group the population standard deviation is about 2.0 (and the population variance is equal to 4.00). As only 2-3% of Canadians have X ancestors, Jennifer and her manager assume that the standard deviation in the population of those who have no X ancestry is also around 3.0 as in the country in general. This assumption allows using z-distribution. The data are provided. Can we state at 3% level of significance that it matters whether a person belongs to X group or not in terms of the risk of developing W cancer? Or the chances are equal (on average Y parameters are the same)? Help Jennifer Nguyen to conduct the test. Use Data Analysis z-Test: Two-Sample for Means. Would your conclusion change at 5% level of significance?

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Concepts In Practical Differential Equations

Authors: Sabita Mahanta

1st Edition

9353146488, 9789353146481

More Books

Students also viewed these Mathematics questions

Question

Develop successful mentoring programs. page 418

Answered: 1 week ago