For each problem, 1. Check the assumptions 2. State your hypothesis using appropriate notations 3. Compute the test statistic and p-value using R and Excel 4. Paste R Code and Excel Data Analytic ToolPak Output 5. Report significance level test statistics o p-value If you reject or fail to reject the null hypothesis 6. Interpret your conclusion in the context of the application

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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For each problem,
1. Check the assumptions
2. State your hypothesis using appropriate notations
3. Compute the test statistic and p-value using R and Excel
4. Paste R Code and Excel Data Analytic ToolPak Output
5. Report
significance level
test statistics
p-value
If you reject or fail to reject the null hypothesis
6. Interpret your conclusion in the context of the application
Problem 1:
Early-Onset Dementia. Dementia is the loss of the intellectual and social abilities severe enough to
interfere with judgment, behavior, and daily functioning. Alzheimer's disease is the most common type
of dementia. In the article "Living with Early-Onset Dementia: Exploring the Experience and Developing
Evidence-Based Guidelines for Practice" (Alzheimer's Care Quarterly, Vol. 5, Issue 2, pp.111-122), P.
Harris and J. Keady explored the experience and struggles of peoples diagnosed with dementia and their
families. A simple random sample of 21 people with early-onset dementia gave the following normally
distributed data on age at diagnosis.
60
58
52
58
59
58
51
61
54
59
55
53
44
46
47
42 | 56
57
49
41 | 43
At the 1% significance level, do the data provide sufficient evidence to conclude that the mean age at
diagnosis of all people with early-onset dementia is less than 55 years old?
Transcribed Image Text:For each problem, 1. Check the assumptions 2. State your hypothesis using appropriate notations 3. Compute the test statistic and p-value using R and Excel 4. Paste R Code and Excel Data Analytic ToolPak Output 5. Report significance level test statistics p-value If you reject or fail to reject the null hypothesis 6. Interpret your conclusion in the context of the application Problem 1: Early-Onset Dementia. Dementia is the loss of the intellectual and social abilities severe enough to interfere with judgment, behavior, and daily functioning. Alzheimer's disease is the most common type of dementia. In the article "Living with Early-Onset Dementia: Exploring the Experience and Developing Evidence-Based Guidelines for Practice" (Alzheimer's Care Quarterly, Vol. 5, Issue 2, pp.111-122), P. Harris and J. Keady explored the experience and struggles of peoples diagnosed with dementia and their families. A simple random sample of 21 people with early-onset dementia gave the following normally distributed data on age at diagnosis. 60 58 52 58 59 58 51 61 54 59 55 53 44 46 47 42 | 56 57 49 41 | 43 At the 1% significance level, do the data provide sufficient evidence to conclude that the mean age at diagnosis of all people with early-onset dementia is less than 55 years old?
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