Answered: Perform the 5-step hypothesis testing.…

Name: A dietitian wishes to see if a person’s cholesterol level will change
Uploaded: 2024-03-20T07:07:12.000Z
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Description: A dietitian wishes to see if a person’s cholesterol level will change if the diet is supplemented by a certain mineral. Six respondents were pretested and then took the mineral supplement for a six-week period. Can it be concluded that the cholestero

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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A dietitian wishes to see if a person’s cholesterol level will change if the diet is supplemented by a certain mineral. Six respondents were pretested and then took the mineral supplement for a six-week period. Can it be concluded that the cholesterol level has been changed at ? = 0.10
Assume that the data is approximately normally distributed. Cholesterol level is measured in milligrams per deciliter.

Show the 5 steps hypothesis testing

Perform the 5-step hypothesis testing.
A dietitian wishes to see if a person's cholesterol level will change if the diet is supplemented by
a certain mineral. Six respondents were pretested and then took the mineral supplement for a
six-week period. Can it be concluded that the cholesterol level has been changed at a = 0.10
Assume that the data is approximately normally distributed. Cholesterol level is measured
in milligrams per deciliter.
Subject
Before
1
2
3
4
5
210
235
208
190
172
244
After
190
170
210
188
173
228
• State the hypotheses and identify the claim.
• Compute the test value.
• Find the critical value.
• Make the decision.
• Summarize the results.
• Set level of significance and determine Test statistic.
• Formulate Decision rule.
• Conclusion

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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