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1. What are the assumptions regarding a small two sample t-test and what Excel aid would you use to perform the test, Data Analysis or MacDoIt?
2. What are the assumptions regarding an ANOVA test and what Excel aid would you use to perform the test, Data Analysis or MacDoIt?
3. What are the assumptions regarding a Chi-square test?
Develop a joint probability table for these data. If a student goes full time, determine the probability that school quality is first reason for selecting a school?
Given the following number of hours between breakdowns for 4 machines, are the machines significantly different? If so, how are they different? Which machine is the best?
Provided an example of a research problem at any organization that would benefit from the employ of either descriptive statistics or probability distribution statistics.
A local politician in this town has stated that the average property taxes are $1800 and most people do not pay more than this amount. Conduct a test at the alpha = .01 level to determine if this is true. For this test, consider a sample size of 3..
Determine the variance of X? (Illustrate your computation either in Table or in Equation form)
According to the Insurance Institute of America, a family of four spends between $400 and $3800 per year on all types of insurance. Suppose the money spent is uniformly distributed between these amounts.
Probability depends on normal distribution. If a random sample of nine 18 year old men is selected illustrate what is the probability that the mean height
A researcher is interested in estimating the noise levels in decibels at area urban hospitals. She wants to be 99% confident that her estimate is correct.
I'm having difficulty understanding and showing in layman terms or simple terms an example and comparison between the ANOVA test, Kruskal-Wallis test, and T-Test Statisitc.
Calculate the correlation coefficient and prediction equation.
The American Automobile Association checks the prices of gasoline before many holiday weekends.
Both days have sample standard deviations of 3.4. Is the average mean of size different from day 1 to day 2?
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