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 company’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 downloaded. 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.
Answer to relevant QuestionsA company executive has read with interest the finding that the average U.S. office worker receives about 60 e-mails per day. Assume that an executive, wishing to replicate this study within her own corporation, directs ...Construct stem-and-leaf and dotplot displays based on the investment portfolio values in the data file (XR02017) for Exercise 2.17. Exercise 2.17 The current values of the stock portfolios for 80 clients of an investment ...The median income for a four-person family has been reported as shown here for 1993–2003. Construct a line graph describing these data over time. Using the frequency distribution in Exercise 2.3, identify the following for the 25–under 35 class: (a) Frequency, (b) Upper and lower limits, (c) Width, and (d) Midpoint. For the fleet described in Exercise 2.48, a. Construct a simple tabulation in which the counts are according to the type of engine. b. Construct a cross-tabulation describing the fleet, using type of engine and whether the ...
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