Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

46.Researchers wanting to assess skin irritation associated with a new sunscreen developed for those with photo sensitivity. They randomly sample 240 men with a history

46.Researchers wanting to assess skin irritation associated with a new sunscreen developed for those with photo sensitivity. They randomly sample 240 men with a history of photo sensitivityand 240 men without a history of photo sensitivityand ask them to apply the cream and report the level of skin irritation they experience after spending 20 minutes in the sun using a scale of 0-10. The average skin irritation score for the group with history of photo sensitivitywas 1.2 and the average skin irritation score for the group without a history of photo sensitivitywas 1.4. The Levene'stest for equality of variances had a p value of 0.04. You know this means:

a. The researchers should report the t-test results NOT assuming equal variances

b. The researchers should reject the null hypothesis and report there is a difference in the average skin irritation score

c. The researchers should report the t-test results assuming equal variances

d. The researchers should fail to reject the null hypothesis and conclude there is NOT a difference in the average skin irritation score

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

Quantitative Analysis For Management

Authors: Barry Render, Ralph M. Stair, Michael E. Hanna

11th Edition

9780132997621, 132149117, 132997622, 978-0132149112

Students also viewed these Mathematics questions