Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Brunt, Rhee, and Zhong (2008) surveyed 557 undergraduate college students to examine their weight status, healthbehaviors, and diet. Using body mass index (BMI), they classified

Brunt, Rhee, and Zhong (2008) surveyed 557 undergraduate college students to examine their weight status, healthbehaviors, and diet. Using body mass index (BMI), they classified the students into four categories: underweight,healthy weight, overweight, and obese. They also measured dietary variety by counting the number of different foodseach student ate from several food groups. Note that the researchers are not measuring the amount of food eatenbut rather the number of different foods eaten (variety, not quantity).

Nonetheless, it was somewhat surprising thatthe results showed no differences among the four weight categories that were related to eating fatty and/ or sugarysnacks.

Suppose a researcher conducting a follow up study obtains a sample of n = 36 students classified as healthy weight and a sample of n = 49 students classified as overweight. Each student completes the food variety questionnaire, and the healthy-weight group produces a mean of M = 4.01 for the fatty, sugary snack category compared to a mean of M = 4.48 for the overweight group. The results from the Brunt, Rhee, and Zhong study showed an overall mean variety score of = 4.22 for the discretionary sweets or fats food group. Assume that the distribution of scores is approximately normal with a standard deviation of = 0.60.

Does the sample of n = 49 indicate that number of fatty, sugary snacks eaten by overweight students is significantly different from the overall population mean? Use a two-tailed test with = .05. (Note: round all answers to two decimals)

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

Applied Linear Algebra

Authors: Peter J. Olver, Cheri Shakiban

1st edition

131473824, 978-0131473829

More Books

Students also viewed these Mathematics questions

Question

Describe the concept of AI in marketing.

Answered: 1 week ago