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When running an analysis of variance (ANOVA) two-factor replication (two-way test), you get a p-value for the interaction effect, indication whether it is statistically significant. If it is significant, you should not try to interpret the main effects at all. Explain why this is the case, giving an example to illustrate your explanation.
To test whether there is significant mean difference between two groups using independent sample t test.
Computing the expected values for the given probability distribution and evaluate the expected values of the following probability distributions
The response variable is the change in cholesterol level after two months of treatment. An analysis of variance will be used to compare the three treatments. What null hypothesis is tested by this ANOVA F-test?
We are interested in determining if the accident proportions differ between the two age groups:
a multiple choice quiz has 5 questions each with 5 answer choices. only one of the choices is correct. you have no idea
Customers arrive at an automated coffee vending machine at a rate of 4 per minute, following a Poisson distribution. What is the average number of people waiting in line?
How much variability will you have if you predict sales with this model?
I work in Aerospace Engineering. Aerospace components are often subjected to cyclic loads and can fail in "fatigue". The designers design the parts against fatigue failures using the "fatigue life" of the materials, typically obtained by testing the ..
What values would be appropriate for the performance measures listed in the preceding problem for the case in which two tellers are available?
Neckwarmers. Mountainside Fleece sold 40 Neckwarmers. Solid-color neckwarmers sold for $9.90 each and print ones sold for $12.75 each.
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
Suppose it costs $25 per student for the administrators to provide the course materials.
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