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Three different checkpoints in a water distribution system are tested for bacterial contamination. Several randomly selected water samples from each location are used to produce bacterial contamination scores on a scale from 1 and 20. Is the level of contamination the same everywhere? Location 1 Location 2 Location 3 13 9 14 11 9 5 15 6 11 8 Sum 48 32 30 The null hypothesis is that the bacterial contamination is the same at all three locations. Your research hypothesis is that at least one location has a different mean contamination score. You calculate that Ex = 110 and Ex? = 1200. Perform the rest of the ANOVA calculations to determine the Between Groups degrees of freedom. 8 2 1 7

Three different checkpoints in a water distribution system are tested for bacterial contamination. Several randomly selected water samples from each location are used to produce bacterial contamination scores on a scale from 1 and 20. Is the level of contamination the same everywhere? Location 1 Location 2 Location 3 13 9 14 11 9 5 15 6 11 8 Sum 48 32 30 The null hypothesis is that the bacterial contamination is the same at all three locations. Your research hypothesis is that at least one location has a different mean contamination score. You calculate that Ex = 110 and Ex? = 1200. Perform the rest of the ANOVA calculations to determine the Between Groups degrees of freedom. 8 2 1 7

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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Three different checkpoints in a water distribution system are tested for bacterial contamination. Several randomly selected water samples from each location are used to produce bacterial contamination scores on a scale from 1 and 20. Is the level of contamination the same everywhere? Location 1 Location 2 Location 3 13 9 14 11 9 5 15 6 11 8 Sum 48 32 30 The null hypothesis is that the bacterial contamination is the same at all three locations. Your research hypothesis is that at least one location has a different mean contamination score. You calculate that Ex = 110 and Ex? = 1200. Perform the rest of the ANOVA calculations to determine the Between Groups degrees of freedom. 8 2 7
Transcribed Image Text:Three different checkpoints in a water distribution system are tested for bacterial contamination. Several randomly selected water samples from each location are used to produce bacterial contamination scores on a scale from 1 and 20. Is the level of contamination the same everywhere? Location 1 Location 2 Location 3 13 9 14 11 9 5 15 6 11 8 Sum 48 32 30 The null hypothesis is that the bacterial contamination is the same at all three locations. Your research hypothesis is that at least one location has a different mean contamination score. You calculate that Ex = 110 and Ex? = 1200. Perform the rest of the ANOVA calculations to determine the Between Groups degrees of freedom. 8 2 7
It is claimed that, on average, enrollment in a statistics course improves students' understanding of the subject. A random sample of fifteen students is tested on this subject before and after their successful completion of such a course. Which statistical method would be appropriate to analyze these data? Student's t-test for paired samples Analysis of Variance OTWO-Sample Student's t-test Chi-Square test Mann-Whitney Test
Transcribed Image Text:It is claimed that, on average, enrollment in a statistics course improves students' understanding of the subject. A random sample of fifteen students is tested on this subject before and after their successful completion of such a course. Which statistical method would be appropriate to analyze these data? Student's t-test for paired samples Analysis of Variance OTWO-Sample Student's t-test Chi-Square test Mann-Whitney Test
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