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1. Provide an example of how an ANOVA could expand on the results of a t-test. In other words, think of an example (related to the field of psychology) in which you could use a t-test, and then note how the comparison could change if an ANOVA was used.
2. How do effect size and power relate to statistical analysis?
NCAA Football Coach Salaries: Given below are annual salaries for simple random sample of NCAA football coaches (Based on data from USA). How do mean and median change if highest salary is omitted?
A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once.
For the experiment above, let X denote the number of hearts that are drawn. For this random variable, find its expected value and standard deviation.
A drawer contains 11 identical red socks, and 8 identical black socks. Suppose that you choose 2 socks at random in the dark
Workers at a large toxic clean up project are concerned that their white blood cell counts may have been reduced. Let x be a random variable that represents white blood cell count per cubic millimeter of whole blood in a healthy adult.
Determine the following probabilities: Events A and B are mutually exclusive events defined on common sample space.
The test has a reliability of .87 and a standard deviation of 5. Joe scored a 57 on the test and Jill scored a 62. Is Jill clearly superior to Joe? Explain your answer.
How large a sample size will need to be selected if we wish to have a 99% confidence interval with a margin for error of .25 hours?
Which of the following is true about a 95% confidence interval of the mean of a given sample:
with sample standard deviation s=0.6. Use a 5% level of significance to test the claim that the drug has changed(either way) the mean pH level of the blood.
Determine the probability that adult owns stock and has some college education? Determine the probability that adult owns stock or has some college education?
Calculate the margin of error that would be used to determine a 95% confidence interval for the mean pulse rate of all women.
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