A researcher wanted to determine if carpeted rooms contain more bacteria than uncarpeted rooms. The table shows the results for the number of bacteria per cubic foot for both types of rooms. Full data se Carpeted 10.9 13.7 Uncarpeted 10.2 15.9 10.1 5.7 9.2 10.1 12.4 15.3 11.3 7.8 13.6 14 Determine whether carpeted rooms have more bacteria than uncarpeted rooms at the a =0.05 level of significance. Normal probability plots indicate that the data are approximately normal and boxplots indicate that there are no outliers. State the null and alternative hypotheses. Let population 1 be carpeted rooms and population 2 be uncarpeted rooms. O A. Ho: H1 = H2 H: H1

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
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A researcher wanted to determine if carpeted rooms contain more bacteria than uncarpeted rooms. The table shows the results for the number of bacteria per cubic foot for both types of rooms.
Full data set o
Carpeted
10.9 13.7
10.1 12.4
7.8
Uncarpeted
10.2
10.1 11.3
15.9
15.3
5.3
11.3
5.7
9.2
13.6
14
Determine whether carpeted rooms have more bacteria than uncarpeted rooms at the a =0.05 level of significance. Normal probability plots indicate that the data are approximately normal and boxplots indicate that there are no outliers.
State the null and alternative hypotheses. Let population 1 be carpeted rooms and population 2 be uncarpeted rooms.
O A. Ho: H1 = H2
H: H1 <H2
B. Ho: H1= H2
H;: H1> H2
O C. Ho: H1 = H2
D. Ho: H1 <H2
H: H1> H2
Determine the P-value for this hypothesis test.
P-value = (Round to three decimal places as needed.)
Transcribed Image Text:A researcher wanted to determine if carpeted rooms contain more bacteria than uncarpeted rooms. The table shows the results for the number of bacteria per cubic foot for both types of rooms. Full data set o Carpeted 10.9 13.7 10.1 12.4 7.8 Uncarpeted 10.2 10.1 11.3 15.9 15.3 5.3 11.3 5.7 9.2 13.6 14 Determine whether carpeted rooms have more bacteria than uncarpeted rooms at the a =0.05 level of significance. Normal probability plots indicate that the data are approximately normal and boxplots indicate that there are no outliers. State the null and alternative hypotheses. Let population 1 be carpeted rooms and population 2 be uncarpeted rooms. O A. Ho: H1 = H2 H: H1 <H2 B. Ho: H1= H2 H;: H1> H2 O C. Ho: H1 = H2 D. Ho: H1 <H2 H: H1> H2 Determine the P-value for this hypothesis test. P-value = (Round to three decimal places as needed.)
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