A researcher wanted to determine if carpeted or uncarpeted rooms contain more bacteria. The table shows the results for the number of bacteria per cubic foot for both types of rooms. A normal probability plot and boxplot indicate that the data are approximately normally distributed with no outliers. Do carpeted rooms have more bacteria than uncarpeted rooms at the a= 0.01 level of significance? Click the icon to view the Student t-distribution table. What are the null and alternative hypotheses? Ho: versus H₁: CICECH Carpeted 11.6 6.4 7.9 7.1 14.9 7.7 12.8 12.6 Full data set Uncarpeted 6.6 4.6 3.4 3.4 7.9 6 7.7 2.6

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Q6
Carpeted
A researcher wanted to determine if carpeted or uncarpeted rooms
contain more bacteria. The table shows the results for the number of
bacteria per cubic foot for both types of rooms. A normal probability plot
and boxplot indicate that the data are approximately normally distributed 11.6 6.4 7.9
with no outliers. Do carpeted rooms have more bacteria than uncarpeted 7.1 14.9
rooms at the x = 0.01 level of significance?
12.8 12.6
7.7
Click the icon to view the Student t-distribution table.
What are the null and alternative hypotheses?
versus H₁:
Ho:
CREED
Full data set
Uncarpeted
6.6
4.6
3.4 7.9
7.7
2.6
3.4
6
Transcribed Image Text:Carpeted A researcher wanted to determine if carpeted or uncarpeted rooms contain more bacteria. The table shows the results for the number of bacteria per cubic foot for both types of rooms. A normal probability plot and boxplot indicate that the data are approximately normally distributed 11.6 6.4 7.9 with no outliers. Do carpeted rooms have more bacteria than uncarpeted 7.1 14.9 rooms at the x = 0.01 level of significance? 12.8 12.6 7.7 Click the icon to view the Student t-distribution table. What are the null and alternative hypotheses? versus H₁: Ho: CREED Full data set Uncarpeted 6.6 4.6 3.4 7.9 7.7 2.6 3.4 6
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