3. Researchers wanted to determine if carpeted rooms contained more bacteria thàn uncarpeted rooms. To determine the amount of bacteria in a room, researchers pumped the from the room over a Petri dish at the rate of 1 cubic foot per minute for eight carpeted roon and eight uncarpeted rooms. Colonies of bacteria were allowed to form in the 16 Petri dishes The results are presented in the table below. 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 = 0.05 level of significance? Carpeted Rooms (bacteria/cubic foot) 11.8 8.2 7.1 13.0 Uncarpeted Rooms (bacteria/cubic foot) 12.0 10.8 10.1 14.6 12.1 8.3 3.8 7.2 11.1 10.1 14.0 13.7
3. Researchers wanted to determine if carpeted rooms contained more bacteria thàn uncarpeted rooms. To determine the amount of bacteria in a room, researchers pumped the from the room over a Petri dish at the rate of 1 cubic foot per minute for eight carpeted roon and eight uncarpeted rooms. Colonies of bacteria were allowed to form in the 16 Petri dishes The results are presented in the table below. 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 = 0.05 level of significance? Carpeted Rooms (bacteria/cubic foot) 11.8 8.2 7.1 13.0 Uncarpeted Rooms (bacteria/cubic foot) 12.0 10.8 10.1 14.6 12.1 8.3 3.8 7.2 11.1 10.1 14.0 13.7
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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