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The faculty members at Boise State University were surveyed on the question "How satisfied were you with the Summer 2002 Schedule?" Their responses were to be categorized as "very satisfied," "somewhat satisfied," "neither satisfied nor dissatisfied," "somewhat dissatisfied," or "very dissatisfied."
(a) Name the variable of interest.
satisfaction dissatisfaction satisfaction level with summer schedule
(b) Identify the type of variable.
continuous ordinal nominal discrete quantitative
Suppose that you are interested in determining the effectiveness of an intensive supervision program (ISP) for poor student performers. To examine its effectiveness, you keep track of 12 students entering an ISP for one year and tabulate the numbe..
A multiple regression equation for list price of homes in certain community in USA is=170,000 -850 X 1 + 28,000 X 2 , where X 1 signifies age in years and X 2 signifies number of rooms.
The article should include a margin of error and confidence interval. Discuss the subject matter in the article, and interpret the results and what the confidence interval and margin of error mean as they apply to the specific subject matter.
Explain in words general pattern of correlation is statistically important.
Can the company claim that they are faster than the average utility?
How do we use a least squares regression line? What is the range for the coefficient of determination?
Identify each of the following variables are qualitative or quantitative
Nine percent of undergraduate students carry credit card balances greater than $7000. Presume 10 undergraduate students are selected randomly to be interviewed about credit card usage.
Consider a problem where we two products: Product A (cloth bags) and product B (leather bags). Each unit of Product A that is sold produces $30 in profit and each unit of Product B that is sold produces $50 in profit.
Suppose that among all participants, the mean test score is 70.07 and the standard deviation is 10.27. Use z-scores to interpret a raw score of 80. What is the corresponding z-score? How would you interpret this result? Show your work.
In comparing two variances below, determine test value and what are degrees of freedom that must be used?
Index number acts as a barometer for measuring the value of money. What are the characteristics of an index number? State its utility.
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