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14. In a study investigating freshman weight gain, the researchers also looked at gender differences in weight (Kasparek, Corwin, Valois, Sargent, & Mor- ris, 2008). Using self-reported heights and weights, Ded they computed the Body Mass Index (BMI) for each student. Based on the BMI scores, the students were classified as either desirable weight or overweight. When the students were further classified by gender, the researchers found results similar to the frequencies in the following table: Desirable Weight Overweight Males 74 46 Females 62 18 a. Do the data indicate that the proportion of over- weight men is significantly different from the pro- portion of overweight women? Test with a = b. Compute the phi-coefficient to measure the strength of the relationship. c. Write a sentence demonstrating how the outcome of the hypothesis test and the measure of effect size would be reported in a journal article. .05. 15. Research results suggest that IQ scores for boys are more variable than IQ scores for girls (Arden & Plomin, 2006). A typical study looking at 10-year-old

14. In a study investigating freshman weight gain, the researchers also looked at gender differences in weight (Kasparek, Corwin, Valois, Sargent, & Mor- ris, 2008). Using self-reported heights and weights, Ded they computed the Body Mass Index (BMI) for each student. Based on the BMI scores, the students were classified as either desirable weight or overweight. When the students were further classified by gender, the researchers found results similar to the frequencies in the following table: Desirable Weight Overweight Males 74 46 Females 62 18 a. Do the data indicate that the proportion of over- weight men is significantly different from the pro- portion of overweight women? Test with a = b. Compute the phi-coefficient to measure the strength of the relationship. c. Write a sentence demonstrating how the outcome of the hypothesis test and the measure of effect size would be reported in a journal article. .05. 15. Research results suggest that IQ scores for boys are more variable than IQ scores for girls (Arden & Plomin, 2006). A typical study looking at 10-year-old

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question #14 part A,B & C.
**Study on Freshman Weight Gain and Gender Differences** In a study investigating freshman weight gain, researchers examined gender differences in weight (Kasparek, Corwin, Valois, Sargent, & Morris, 2008). Using self-reported heights and weights, they computed the Body Mass Index (BMI) for each student. Based on BMI scores, the students were categorized as either desirable weight or overweight. When classified by gender, the frequencies were recorded as follows: | | Desirable Weight | Overweight | |------------|------------------|------------| | Males | 74 | 46 | | Females | 62 | 18 | **Analysis Questions** a. Do the data indicate that the proportion of overweight men is significantly different from the proportion of overweight women? Test this with α = .05. b. Compute the phi-coefficient to measure the strength of the relationship. c. Write a sentence demonstrating how the outcome of the hypothesis test and the measure of effect size would be reported in a journal article.
Transcribed Image Text:**Study on Freshman Weight Gain and Gender Differences** In a study investigating freshman weight gain, researchers examined gender differences in weight (Kasparek, Corwin, Valois, Sargent, & Morris, 2008). Using self-reported heights and weights, they computed the Body Mass Index (BMI) for each student. Based on BMI scores, the students were categorized as either desirable weight or overweight. When classified by gender, the frequencies were recorded as follows: | | Desirable Weight | Overweight | |------------|------------------|------------| | Males | 74 | 46 | | Females | 62 | 18 | **Analysis Questions** a. Do the data indicate that the proportion of overweight men is significantly different from the proportion of overweight women? Test this with α = .05. b. Compute the phi-coefficient to measure the strength of the relationship. c. Write a sentence demonstrating how the outcome of the hypothesis test and the measure of effect size would be reported in a journal article.
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