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1. What is Factor Analysis and when should a researcher use it?
2. Describe a research problem that would benefit from Factor Analysis. What are the variables and what would you hope to achieve?
While exploring data that was collected for an investigation of resources needed for software testing and improvement, you have found an outlier.
Costs of Television: Listed below are prices (in dollars) and quality rating scores of rear-projection televisions. All of the televisions have screen sizes of 55 or 56 inches.
How many individuals will it need to sample to achieve this level of accuracy and confidence?
Utilize a test of the difference among proportions when answering these questions. Illustrate the research hypothesis.
Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. Here are data on the "penetrability" of the same type of soil at 2 levels of compression.
A random sample of 1440 current job applicants results in 61 failures (based loosely on data from the American Management Association).
You are estimating the install hours for an electronics upgrade based on the number of components affected. The upgrade for which you are estimating affects 25 components. Given the following equation, select the correct response from each pair.
What is the standard deviation of expected returns for Stock X? For Stock Y?
In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.
What kind of correlation do you expect to find between annual income and amount spent on car? Will it be positive or negative?
Explain the effect that changes in η and β have on the shape of the Weibull density and the effect that they have on γ3 and derive an expression for the coefficient of skewness for the Weibull distribution.
Find an equation of the least squares regression line. Please show your work. Is there a linear correlation between "x" and "y" at the 0.01 significance level? Please justify your answer.
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