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A group of children can be classified according to eye color (blue, brown, green), gender (male, female), and hobby (collecting stamps, collecting baseball cards, collecting shells, collecting stickers). How many possible different classifications are there? MUST USE A TREE DIAGRAM and show work.
One group is given the new drug and the other group is given the standard drug. Data are recorded on the effects of each drug. Is the research division using dependent or independent samples? Why?
List and describe the three assumptions of ANOVA. When should researchers use different hypothesis tests for independent and related samples? What is the difference between a one-way-ANOVA and a two-way-ANOVA?
A group of investors wants to develop a chain of fast food cafés. In determining potential costs for each facility, they must consider, among other costs, the average monthly cost of electricity.
What is the appropriate procedure to test a significant difference in means between the two groups? Use the critical-value method.
In study of a clinical for an allergy drug 115 of the 204 subjects reported experiencing important relief from their symptoms.
An assumption for a significance test of the correlation coefficient is that the populations, the variance of each variable is the same at each point of the other variable.
Test the given claim using the traditional method of hypothesis testing.
If a gambler rolls two dice and gets a sum of four, he wins $10; and if he gets a sum of three, he wins $25. The cost to play the game is $5. What is the expectation of this game?
What is the null hypothesis? Use α =0.05. Compute critical value. Use α =0.05.
Suppose that a study based on a sample from a targeted population shows that people at a pizza restaurant are hungrier than people at a coffee shop. Make an interference based on the results of the study.
Find the strategy that maximizes the manufacturer's expected net earnings and Should the manufacturer routinely obtain credit rating reports on those retailers who seek credit approval? Why or why not?
Based on these results, the proportion of the variation in 1993 winnings that is explained by the average number of putts per round and driving distance
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