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1. The current values of the stock portfolios for 80 clients of an investment counselor are as listed in data file XR02017. Use your computer statistical software to generate a frequency distribution and histogram describing this information. Do any of the portfolio values seem to be especially large or small compared to the others?
2. One of the ways to evaluate the ease of navigating a corporate website is to measure how long it takes to reach the link where you can view or download the com- pany's most recent annual report. In randomly selecting and visiting 80 corporate websites, an investor needed an average of 39.9 seconds to reach the point where the company's annual report could be viewed or down- loaded. The 80 times are in data file XR02018. Generate a frequency distribution and histogram describing this information. Comment on whether any of the corporate sites seemed to require especially long or short times for the annual report to be found.
Design and First Question on Response Rates for a Mail Survey of Skydivers" (Leisure Science, 1991) tested this theory by experimenting with different cover designs.
Compute the unit manufacturing cost of the product under the contribution approach. Compute the effect on net income of accepting a special order for 500 units at $10 per unit assuming excess capacity.
question aggregate responses to three questions were obtained from a survey of 100 males and 100 females who were
The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. Determine the cumulative distribution function of flange thickness.
pretest-posttest design and internal validity threats.answer the question either by writing the design name or by
the game of 5-spot keno is similar to 4-spot keno. 80 numbers are displayed on a board and 20 of these numbers will
polychlorinated biphenyls pcbs are used in the manufacture of electrical transformers and pose a great danger to health
Multiple comparison procedures are going to be done using the Bonferroni method with = 0.05. The value of t** is 2.4667. Which of the following is the appropriate conclusion from carrying out these multiple comparisons?
Researchers at Pharm-X, a pharmaceutical company, are testing and comparing the effects of Drug A and Drug B on participants' allergies. The researchers are using a double-blind procedure to conduct their test.
the strength of ones immune system can be evaluated in several ways. one of the most popular methods involves measuring
A silver dollar is flipped twice, calculate the probability of each of the following occurring
1. the following table represents the u.s. sources of electrical
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