Entries by Munene david

What is the estimated 95% confidence interval (CI) of the average blood vitamin D

April 30, 2020 in /by

What is the estimated 95% confidence interval (CI) of the average blood vitamin D level of US landscapers in ng/mL? Please note the following: 1) you might calculate a CI that is different from any of the multiple choice options listed below due to rounding differences, therefore select the closest match; 2) ensure you use […]

 

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What is the estimated 95% confidence interval (CI) of the average

April 30, 2020 in /by

What is the estimated 95% confidence interval (CI) of the average difference in blood vitamin D levels between US landscapers and office workers in ng/mL? Assign groups 1 and 2 to be landscapers and office workers, respectively. Please note the following: 1) in practice, you as the analyst decide how to assign groups 1 and […]

 

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What is the estimated 95% confidence interval (CI) of the average

April 30, 2020 in /by

What is the estimated 95% confidence interval (CI) of the average difference in blood vitamin D levels between US landscapers and office workers in ng/mL? Assign groups 1 and 2 to be landscapers and office workers, respectively. Please note the following: 1) in practice, you as the analyst decide how to assign groups 1 and […]

 

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Per Step 1 of the 5-Steps to Hypothesis Testing,

April 30, 2020 in /by

Per Step 1 of the 5-Steps to Hypothesis Testing, choose the appropriate null and alternative hypotheses, i.e. H0 and H1, respectively, as well as the significance level, α, pronounced as “alpha”. Please note that 0 and 1 are defined as no and yes, respectively, which is a typical coding scheme in Public Health. Select one: […]

 

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