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1. Describe a 5-step hypothesis test for two variances for a particular claim related to a real life experience. You need to state the claim, define the null and alternate hypothesis, identify the test significance and the test statistic, and state the decision rule that will be used. The decision rule may be based on critical values or on the p-value approach.
2. Describe a 5-step hypothesis test of multiple means (using the one-factor or the two-factor ANOVA test process) for a particular claim related to real life environment. You need to state the claim, define the null and alternate hypotheses, identify the test significance and the test statistic, and state the decision rule that will be used. The decision rule may be based on critical values or on the p-value approach. You do not need to collect data and actually conduct the test calculations unless you wish to do so.
Give an example of how you may use multiple regression to answer a question related to the impact of leadership change on employee attitudes scores, teambuilding training and performance outcomes.
Find the probability of a type I error α if the true proportion is p=0.6.
A range of values constructed from sample data so that the parameter occurs within that range at a specified probability is:
Equation of the regression line - Evaluate the equation of the regression line and Find y' when x=47 years.
From the calculator manufacturer?s point of view, which type of error would be considered more serious and explain why? From the printed circuit supplier?s point of view, which type of error would be considered more serious and explain why?
If you assume returns follow a normal distribution, which investment would give a better chance of getting at least a $40 million return? Explain. (B) How could your answer to part (A) change if you knew returns followed a skewed distribution inst..
Has the average community level of suspended particles for the month of August exceeded 30u/m3?
Consumer Review posts reviews and ratings of a variety of products on internet. The following is a sample of 20 speaker systems and their ratings (www.audioreviews.com).
Suppose you went to the Bureau of Labor Statistics web site and found several predictors of your salary. State three possible predictors and a simulated multilinear regression equation along with their p-values. What does your p-values tell you ab..
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 40 Americans is taken to further investigate viewing habits.
Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information
Calculate the 95% confidence interval for the rate of positive tuberculin reaction separately for each of the two subpopulation, those with high exposure and those with low exposure.
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