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Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 11.3 - Problem 15
Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 11.3 - Problem 15

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# ?Bacteria in Hospital Carpeting Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. To determine the amoun

ISBN: 9780134133539 240

## Solution for problem 15 Chapter 11.3

Statistics: Informed Decisions Using Data | 5th Edition

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Problem 15

Bacteria in Hospital Carpeting Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. To determine the amount of bacteria in a room, researchers pumped the air from the room over a Petri dish at the rate of 1 cubic foot per minute for eight carpeted rooms and eight uncarpeted rooms. Colonies of bacteria were allowed to form in the 16 Petri dishes. The results are presented in the table. 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  = 0.05 level of significance?

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Step 1 of 5) Bacteria in Hospital Carpeting Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. To determine the amount of bacteria in a room, researchers pumped the air from the room over a Petri dish at the rate of 1 cubic foot per minute for eight carpeted rooms and eight uncarpeted rooms. Colonies of bacteria were allowed to form in the 16 Petri dishes. The results are presented in the table. 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 = 0.05 level of significance Some Cautions Regarding Tukey’s Test Sometimes the results of Tukey’s test are ambiguous. Suppose the null hypothesis H0: m1 = m2 = m3 = m4 is rejected and the results of Tukey’s test indicate the following: m1 m2 m3 m4 It appears that populations 1, 2, and 3 have a population mean that is different from that of populations 3 and 4. Clearly, this is impossible. Do you see why

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##### ISBN: 9780134133539

Statistics: Informed Decisions Using Data was written by and is associated to the ISBN: 9780134133539. The answer to “?Bacteria in Hospital Carpeting Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. To determine the amount of bacteria in a room, researchers pumped the air from the room over a Petri dish at the rate of 1 cubic foot per minute for eight carpeted rooms and eight uncarpeted rooms. Colonies of bacteria were allowed to form in the 16 Petri dishes. The results are presented in the table. 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 = 0.05 level of significance?” is broken down into a number of easy to follow steps, and 106 words. This textbook survival guide was created for the textbook: Statistics: Informed Decisions Using Data, edition: 5. Since the solution to 15 from 11.3 chapter was answered, more than 214 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 15 from chapter: 11.3 was answered by , our top Statistics solution expert on 01/15/18, 03:19PM. This full solution covers the following key subjects: . This expansive textbook survival guide covers 88 chapters, and 2422 solutions.

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