A data set includes 108 body temperatures of healthy adult humans having a mean of 98.2°F and a standard deviation of 0.64°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view a t distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. What is the confidence interval estimate of the population mean µ? °F

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
100%

What does it suggest about the use of 98.6 Fahrenheit as the mean of body temperature?

 

a. This suggest that the mean of body temperature could be lower than 98.6 Fahrenheit.

b. This suggest that the mean of body temperature could be very possible be 98.6 Fahrenheit.

c. This suggest that the mean of the body temeprature could be higher than 98.6 Fahrenheit.

**t Distribution: Critical Values**

The t distribution table provides the critical values for statistical tests. The table displays critical values for different significance levels (α) and degrees of freedom, used for hypothesis testing.

**Graphs Explanation:**

1. **Left Tail:**
   - The curve represents a t distribution with the critical value located in the left tail. The shaded area (α) is the probability in the left tail. This critical value is negative.

2. **Right Tail:**
   - This graph displays a t distribution with the critical value located in the right tail. The shaded area (α) represents the right tail probability. This critical value is positive.

3. **Two Tails:**
   - The curve here shows a two-tailed t distribution. The shaded areas (α/2) are located in both tails. The critical values indicate the boundaries for a two-tailed test, with both positive and negative critical values.

**Critical Values Table:**

- Columns represent different significance levels for the area in one tail (0.005, 0.01, 0.025, 0.05, 0.10).
- Rows correspond to degrees of freedom ranging from 1 to 1000.
- The values within the table indicate the critical value for the respective degree of freedom and significance level.

Here's a brief excerpt from the table:

| Degrees of Freedom | 0.005 | 0.01 | 0.025 | 0.05 | 0.10 |
|--------------------|-------|------|-------|------|------|
| 1                  | 63.657| 31.821| 12.706| 6.314| 3.078|
| 2                  | 9.925 | 6.965 | 4.303 | 2.920| 1.886|
| 3                  | 5.841 | 4.541 | 3.182 | 2.353| 1.638|
| ...                | ...   | ...  | ...   | ...  | ...  |
| 1000               | 2.581 | 2.330| 1.962 | 1.646| 1.282|

This table is crucial for determining the t statistic's cutoff point beyond which the null hypothesis can be rejected for a given significance level.
Transcribed Image Text:**t Distribution: Critical Values** The t distribution table provides the critical values for statistical tests. The table displays critical values for different significance levels (α) and degrees of freedom, used for hypothesis testing. **Graphs Explanation:** 1. **Left Tail:** - The curve represents a t distribution with the critical value located in the left tail. The shaded area (α) is the probability in the left tail. This critical value is negative. 2. **Right Tail:** - This graph displays a t distribution with the critical value located in the right tail. The shaded area (α) represents the right tail probability. This critical value is positive. 3. **Two Tails:** - The curve here shows a two-tailed t distribution. The shaded areas (α/2) are located in both tails. The critical values indicate the boundaries for a two-tailed test, with both positive and negative critical values. **Critical Values Table:** - Columns represent different significance levels for the area in one tail (0.005, 0.01, 0.025, 0.05, 0.10). - Rows correspond to degrees of freedom ranging from 1 to 1000. - The values within the table indicate the critical value for the respective degree of freedom and significance level. Here's a brief excerpt from the table: | Degrees of Freedom | 0.005 | 0.01 | 0.025 | 0.05 | 0.10 | |--------------------|-------|------|-------|------|------| | 1 | 63.657| 31.821| 12.706| 6.314| 3.078| | 2 | 9.925 | 6.965 | 4.303 | 2.920| 1.886| | 3 | 5.841 | 4.541 | 3.182 | 2.353| 1.638| | ... | ... | ... | ... | ... | ... | | 1000 | 2.581 | 2.330| 1.962 | 1.646| 1.282| This table is crucial for determining the t statistic's cutoff point beyond which the null hypothesis can be rejected for a given significance level.
A data set includes 108 body temperatures of healthy adult humans having a mean of 98.2°F and a standard deviation of 0.64°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature?

- Click here to view a distribution table.
- Click here to view page 1 of the standard normal distribution table.
- Click here to view page 2 of the standard normal distribution table.

---

What is the confidence interval estimate of the population mean μ?

[ ]°F < μ < [ ]°F  
(Round to three decimal places as needed.)
Transcribed Image Text:A data set includes 108 body temperatures of healthy adult humans having a mean of 98.2°F and a standard deviation of 0.64°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? - Click here to view a distribution table. - Click here to view page 1 of the standard normal distribution table. - Click here to view page 2 of the standard normal distribution table. --- What is the confidence interval estimate of the population mean μ? [ ]°F < μ < [ ]°F (Round to three decimal places as needed.)
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman