# MHEALTH Quiz on Statistics

Quiz 5

1. Using the data in MHEALTH which you have from earlier, test the following:

We claim that men’s mean pulse rate equals about 65 beats per minute.
Use alpha = 5%.

a. Test using the Confidence Interval approach. Show some work.
b. Test using the classical Test of Hypothesis approach. Show some work.
c. Test using the p-value approach

2. Using the data in MHEALTH which you have from earlier, test the following:

We claim that more than half of all men have high cholesterol levels, i.e.; above 200 [mg/dL]. In our sample 27 of 40 are considered high by this criterion. Determine if our data supports or refutes the claim. Use alpha = 10%

a Test using the Confidence Interval approach. Show some work.
b Test using the classical Test of Hypothesis approach. Show some work.
c Test using the p-value approach

3. Using the data in MHEALTH which you have from earlier, test the following:

We claim that the variance in systolic blood pressure has changed since this study was done. A recent study ( http://aje.oxfordjournals.org/content/159/12/1168.full.pdf ) gave men’s systolic pressure as about 130 [mg/dL] with a variance of 272.1[mg/dL]2. Specifically we claim that the variance has changed a statistically significant amount. Use alpha = 5%

a Test using the Confidence Interval approach. Show some work.
b Test using the classical Test of Hypothesis approach. Show some work.
c Test using the p-value approach

4. In measuring men’s pulse rate if we are willing to accept no more than 2 beats per minute as our margin of error and we want to work at the 5% level of significance, how many samples should we have taken?

Solutions are provided (completed filled in document) and also in pdf format!

Subjects: Mathematics -> Stats
Topic: Statistics and Excel Analysis
Level: College / University
Tags:

### Stats, MHEALTH, Quiz, Excel

Price\$1.95

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Project Details
Subjects: Mathematics -> Stats
Topic: Statistics and Excel Analysis
Level: College / University
Tags:

## Stats, MHEALTH, Quiz, Excel

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