Answered: Fifteen inbred laboratory rats (Rattus…

Name: Fifteen inbred laboratory rats (Rattus norvegi-cus) were randomly assi
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Description: Fifteen inbred laboratory rats (Rattus norvegi-cus) were randomly assigned to three groups of five each. Each rat was inoculated with Staphylococcus mucans, a bacterium involved in the process of tooth decay. One group (control) was given no addition

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Fifteen inbred laboratory rats (Rattus norvegi-cus) were randomly assigned to three groups of five each. Each rat was inoculated with Staphylococcus mucans, a bacterium involved in the process of tooth decay. One group (control) was given no additional treatment. A second group was given drug A, and a third group was given drug B. At the end of six weeks, the extent of tooth decay in the

rats was evaluated as percent of tooth decay. This is a fairly subjective measurement based on the combined evaluation of three observ-ers and should probably be regarded as an ordinal measurement. We wish to know if there is a difference among the three groups.

Control
Drug A
Drug B
87
63
45
76
70
60
65
43
56
87
81
92
75
70
60

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Ho:
H1:
H =
HCRIT
Reject Ho?
p-value
Conclusion:

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