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A nurse manager has job offers from 3 different hospitals. To explore the offers further, she asked a sample of nurse managers how many months each worked for the unit/hospital before receiving a raise in salary.
The sample information is:
Number of Months before First Raise in Salary
Hospital A
Hospital B
Hospital C
12
11
10
14
8
13
9
At the 0.05 level of significance, is there a difference in the mean numbers of months before a raise was granted among the three units/hospitals?
a. Set up the null and alternative hypotheses.
b. Formulate the Decision Rule. Use 0.01 level of significance.
c. What's your decision regarding the null hypothesis? Why? What can we conclude?
d. Make sure to provide the ANOVA table and all the computations involved for computing the value of F-statistic.
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correlation between the two variables.a store manager wishes to find out whether there is a relationship between the
A local college requires an English composition course for all freshman. This year they are evaluating a new online version of the course. A random sample of n=16 freshman is selected and the students are placed in the online course.
perform the two anova tests. include the anova table and an explanation of your results. be sure to write full
What is the chi-square goodness-of-fit test? What are the differences/similarities between this test and an independent t-test? How do you know when to use one analysis over the other? Show an example.
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find the true mean purity level
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If the manufacturer's claim is true, what is the probability that the claim will be rejected?
The reac- tion times (in seconds) before and after consuming four drinks are in data file XR11050. At the 0.005 level, has the program host made his point? Identify and interpret the p-value for the test.
researchers studied the effects of adding an exercise program to dieting in the achievement of weight loss. a sample of
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