I would like help figuring out this assignment.

Part I. Analyze Data

Instructions Answers

1. Open the file Body

Temperatures using menu

option Datasets and then

Elementary Stats, 13 th

Edition. This file contains

information on the body

temperature of men and

women at different times of

the day. How many

observations are there in this

file?

There are 107 observations in this file.

2. What results do you expect to

find in this data relative to the

body temperature?

Does smoking between male and female will raise or lower their

temperatures during different times of the day and at given times.

Part II. Descriptive Statistics

3-6 Generate descriptive

statistics for all three groups

of people and complete the

following table. Round all

results to 2 decimal places.

Variable Sample

Mean

Sample

Standard

Deviation

Sample Size

Day 1 8AM 97.68 107

Day 2 8AM 97.49

Day 2 12AM 99.12

7. Did you get the results you

expected here? Explain why.

8. In which of the three groups

did we experience the MOST

variation (highest deviation

from the mean)?

2

Part III. Confidence Intervals

9. Generate a 95% interval for

the hanging mean of Day 1

8AM. Paste your results here.

10. Generate a 95% interval for

the mean of Day 2 8AM.

Paste your results here.

11.Generate a 95% interval for

the mean of Day 2 12AM.

Paste your results here

12. Create a graph below by illustrating all three confidence intervals on one graph using the tools in your

word processor (example below). Stat disk cannot do this for you. Create your graph and turn the

font red. For this process, I just used dashes and wrote a scale below the axes.

Here is an example, but it is not based on the data you are analyzing:

Case 1 14---------------------42

Case 2 35-------------------------70

________________________________________

0 20 40 60

Your Solution:

13. Based on the confidence

intervals shown above, does

there appear to be some

evidence to indicate that time

of day relates to temperature?

Part IV. Hypothesis Testing

14. Let's say that you are trying to show that the mean body temperature on day 1 at 8AM is more than

98.6 degrees. Use an alpha of 0.01.

Step 1. Determine parameter of

interest and compose null and

alternative hypotheses.

Step 2. Determine the sample

mean, sample standard deviation,

and sample size. [Hint: You did

this in an above step in this

3

assignment.]

Step 3. Determine the likelihood

that the population mean is

greater than 98.6 degrees by

completing a Hypothesis Test:

One Mean in STATDISK. Use

significance of 0.01. Paste

results here.

Step 4. State your conclusion.

The conclusion statement has a

prescribed format: it should

include a comparison of the p-

value and alpha, whether you

reject or support the null

hypothesis, and a verbal

statement of which hypothesis is

supported.

15. Now test the claim that the mean body temperature on day 2 at 8 AM is less than 98.2 degrees.

Use a significance level of 0.05.

Step 1. Determine parameter of

interest and compose null and

alternative hypotheses.

Step 2. Determine the sample

mean, sample standard deviation,

and sample size. [Hint: You did

this in an above step in this

assignment.]

Step 3. Determine the likelihood

that the population mean is

actually less than 98.2 degrees

by completing a Hypothesis

Test: One Mean in STATDISK.

Use significance of 0.05. Paste

results here.

Step 4. State your conclusion.

The conclusion statement has a

prescribed format: it should

include a comparison of the p-

value and alpha, whether you

reject or support the null

hypothesis, and a verbal

statement of which hypothesis is

supported.

16. Answer the following questions based on the above hypothesis test.

4

a. What is the p-value in

this example and what

does it represent?

b. Given that your data,

hypotheses, and p-value

do not change, what

would need to be

changed in order for us to

FAIL TO REJECT the

null hypothesis?

Submit your final draft of your Word file by going to Week 4, Project, and follow the directions under

Week 4 Project. Please use the naming convention "WK4Proj+last name+first initial." as the Submission

Title.