Do rats take less time on average than hamsters to travel through a maze? The table below shows the times in seconds that the rats and hamsters took. 30, 52, 30, Rats: 40, 51, 51, 24, 17, 8, 3, 39 49, 42, 31, Hamsters: 52, 34, 18, 42 Assume that both populations follow a normal distribution. What can be concluded at the a = 0.05 level of significance level of significance? For this study, we should use t-test for the difference between two independent population mea The ornativo

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
B AND C ONLY
**Do Rats Take Less Time on Average than Hamsters to Travel Through a Maze?**

The following table shows the times in seconds that the rats and hamsters took to travel through a maze:

**Rats:**
- 40, 51, 51, 24, 17, 8, 3, 39

**Hamsters:**
- 52, 31, 49, 42, 30, 52, 30, 34, 18, 42

**Assumptions:**
- Both populations follow a normal distribution.
- α = 0.05 level of significance.

To determine if there is a statistically significant difference in the average times between rats and hamsters, we should use a:

**t-test for the difference between two independent population means.**

**Steps for Hypothesis Testing:**

**a. The null and alternative hypotheses would be:**

**Null Hypothesis (H₀):** 
\[
H₀: \mu_1 = \mu_2
\]
(μ₁ represents the mean time for rats, and μ₂ represents the mean time for hamsters)

**Alternative Hypothesis (H₁):**
\[
H₁: \mu_1 < \mu_2
\]
(We are testing whether rats take less time than hamsters, hence the less than sign)

**b. Calculate the test statistic:**
\[
t = \, \text{(Please show your answer to 3 decimal places.)}
\]

**c. Determine the p-value:**
\[
\text{p-value} = \, \text{(Please show your answer to 4 decimal places.)}
\]

**Conclusion:**
Based on the p-value and the given level of significance (α = 0.05), we can determine whether to reject the null hypothesis in favor of the alternative hypothesis to conclude if rats indeed take less time on average than hamsters to travel through the maze.
Transcribed Image Text:**Do Rats Take Less Time on Average than Hamsters to Travel Through a Maze?** The following table shows the times in seconds that the rats and hamsters took to travel through a maze: **Rats:** - 40, 51, 51, 24, 17, 8, 3, 39 **Hamsters:** - 52, 31, 49, 42, 30, 52, 30, 34, 18, 42 **Assumptions:** - Both populations follow a normal distribution. - α = 0.05 level of significance. To determine if there is a statistically significant difference in the average times between rats and hamsters, we should use a: **t-test for the difference between two independent population means.** **Steps for Hypothesis Testing:** **a. The null and alternative hypotheses would be:** **Null Hypothesis (H₀):** \[ H₀: \mu_1 = \mu_2 \] (μ₁ represents the mean time for rats, and μ₂ represents the mean time for hamsters) **Alternative Hypothesis (H₁):** \[ H₁: \mu_1 < \mu_2 \] (We are testing whether rats take less time than hamsters, hence the less than sign) **b. Calculate the test statistic:** \[ t = \, \text{(Please show your answer to 3 decimal places.)} \] **c. Determine the p-value:** \[ \text{p-value} = \, \text{(Please show your answer to 4 decimal places.)} \] **Conclusion:** Based on the p-value and the given level of significance (α = 0.05), we can determine whether to reject the null hypothesis in favor of the alternative hypothesis to conclude if rats indeed take less time on average than hamsters to travel through the maze.
Expert Solution
steps

Step by step

Solved in 6 steps with 6 images

Blurred answer
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