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The City library in Amritsar has several private study rooms that are freely available to clients. To use a study room it must be booked in advance, either as a half or full day reservation. Library staff has reported that much of the time the study rooms are empty, despite a full booking sheet. Frame a research question and state the objectives of the study.
You are a realtor with a small business. You use a simple 2 variable linear regression analysis for quick first glance house price estimates using square footage of the house.
What can be completed to remedy multicollinearity.
A business researcher uses two-way ANOVA in a report for a client. The researcher does not check the assumptions of using the technique.
A general contractor is considering purchasing lumber from one of two different suppliers. A random sample of 12 "2x4's" of a certain length of each board is measured.
Describe the basic characteristics of a normal distribution and the normal curve. What are z scores and how are they used in relation to distributions and raw scores?
Correlation between the two variables based on scatter plot - Show the scatter plot for the variables.
From a population of cereal boxes marked "12 ounces," a sample of 16 boxes is selected and the contents of each box weighed. The sample revealed a mean of 11.7 ounces with a standard deviation of 0.8.
Choose a variable (such as number of daily admissions at a local theater or number of miles students have to commute daily to get to their college.) Before collecting the data, decide what a likely average might be, then complete the following:
Determine margin of error was used in creating confidence interval above? Determine the sample size required to obtain the margin of error of 10.97 with 90% confidence interval?
Explain the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented?
A pair of dice is tossed once. Let X denote the sum of the face values, and let Y denote the absolute value of the difference between the face values.
A firm engaged in manufacturing undergarments for gents employs 100 male and 144 female workers. The average production per day of a male worker is 60 items with a variance of 15 items, and that of a female workers is 65 items with a variance of 1..
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