What is the likelihood that the mean difference in this sample was due to random variation?

Below is text from a report of a consumer research study that used an independent samples t test. This research compared taste preferences for two different types of cookies: Brownie Batter and Chocolate. Consumers were randomly assigned to eat one of the two types of cookies, after which they rated it on a 1 (did not like it at all) to 5 (liked it a lot) range. Use this report to answer the question that follow it.

An independent samples t test suggested that participants who ate brownie batter cookie (M = 3.73, SD = 1.19) equally as much as participants who ate a chocolate cookie (M = 4.25, SD = .39), t(18) = -1.32, p = .32, d = 0.59, 95% CI [-1.36, .31].


Ans: .32 or 32%

Education

You might also like to view...

Encouraging children to call teachers by their first names is a universal cultural norm.?

a. True b. False

Education

A child who persists in malicious or frivolous tattling is engaging in inappropriate behavior that should be addressed

a. True b. False

Education

Encoding refers to how you gain access to information stored in memory

Indicate whether the statement is true or false

Education

Ancient peoples created stories to explain natural phenomena. These stories were known as:

a) expository texts b) haiku c) myths d) biographies

Education