Answered: Suppose the group of 45 women vary…

Name: Suppose a researcher is interested in investigating the effectiveness
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Description: Suppose a researcher is interested in investigating the effectiveness of a new diet plan at reducing BMI among a group of women with similar baseline weights after 1 year. Suppose the group of 45 women vary approximately according to a normal distrib

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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Suppose a researcher is interested in investigating the effectiveness of a new diet plan at reducing BMI among a group of women with similar baseline weights after 1 year. Suppose the group of 45 women vary approximately according to a normal distribution with mean BMI (kg/m2) of 29.5 and a standard deviation of 1.6 kg/m2 after 1 year and the 2 goal BMI was 28.5 kg/m.

State your null and alternative hypotheses, and interpret your pvalue, using alpha .05.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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