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Describe the assumptions of normality and homogeneity of variance. When these assumptions are violated, what are your options? Are there cases in which the assumptions may technically be violated, yet have no impact on your intended analyses? Explain
A nurse researcher wanted to evaluate blood pressure in a set of patients/research subjects at 1, 3, and 6 months. What test would be most appropriate? Independent t-test: ANVOVA, RM-ANOVA or ANCOVA
Assume that you work for a chain of food stores and that you are interested in how your company's prices compare with your competitors. Since a food store carries many items, it is likely that you are higher on some products than on others. T..
Consider the situations and comment on whether the sample results might cause concern about the quality of the process.
What was the sample size and how was the data collected? State the meaning of the confidence interval in terms of the specific question or poll.
quantitative analysis decision makingquestion 1- explain the advantages and disadvantages of two time-series analyses.
Calculate the mean, median, and standard deviation and get statistics on the original reaction time, separately for the three stimulus types. Comment on how the means compare for the three stimulus types.
An analysis of the final test scores in this class shows that the scores follow the normal distribution. The mean of the distribution is 75, and the standard deviation is 8. The professor wants to award an A to a student whose score is in the highest..
Discuss the shape of the distribution of the price of new house
Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000. Suppose that one such poll asks voters how they ..
List and explain the variables you would collect in this study. There must be a minimum of three variables and two must meet the assumptions for a correlational analysis.
Investigate the comprative pros and cons of the mean and the median. Find examples where the mean is more appropriate than the median and vice-versa. Discuss the locations of the mean, median and mode for a normal, left-skewed and right-skewed distri..
Evaluate the value of beta for each stock. Which of these stocks would you expect to perform best in an up market? Which would you expect to hold their value best in a down market?
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