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LM

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The number of emergency calls per day at a hospital over a period of 120 days is shown below. The number of emergency calls per day at a hospital over a period of 120 days is shown below.   ​ Use α = .05 and the p-value approach to see if the above data have a Poisson distribution.
Use α = .05 and the p-value approach to see if the above data have a Poisson distribution.

On Jul 20, 2024


χ2 = 4.72; p-value is greater than .1; do not reject H0; no evidence that the distribution is not Poisson.
LM

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ANOVA constitutes a pairwise comparison.

On Jul 10, 2024


False
LM

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{Incomes of Physicians Narrative} Estimate the annual income for a surgeon with 15 years of experience.

On Jun 15, 2024


LM

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{Healthy Foods Narrative} Estimate with 95% confidence thee number of Spanish adults who classify themselves as concerned about eating healthy.

On Jun 09, 2024


LM

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To investigate whether or not sending text messages while driving impacts driving ability,we had 100 participants (50 men and 50 women)drive an obstacle course under one of the following conditions: 1)no texting while driving,2)sending five text messages while driving,or 3)sending 10 text messages while driving.We measured the accuracy with which the subjects drove the obstacle course from a scale of 1 to 10 (1 = poor and 10 = excellent).Explain how you would randomize this study.

On May 13, 2024


Randomly split subjects into three groups.Then randomly assign each group to a treatment.
LM

Answered

The Friedman test applies to which situation?

A) When the problem objective is to compare two or more populations.
B) The data are either ordinal or interval but not nominal.
C) The data are generated from a randomized block experiment.
D) All of these choices are true.

On May 10, 2024


D