Home of www.mathoninfo.net or The Mart or Commercial PagesStatistics 101Centrality, Spreads, Normality, and Chebyshev's RuleHints and Histogram for Problem 2

Problem 2. Below is a table of weekly visitation to a web page. Weekly Visitation of a Web Page for the first 12 weeks of 2006 Week 1/01/2006-1/07/2006 1/08/2006-1/14/2006 1/15/2006-1/21/2006 1/22/2006-1/28/2006 1/29/2006-2/04/2006 2/05/2006-2/11/2006 2/12/2006-2/18/2006 2/19/2006-2/25/2006 2/26/2006-3/04/2006 3/05/2006-3/11/2006 3/12/2006-3/18/2006 3/19/2006-3/25/2006 Visitation 116 119 110 89 116 107 112 85 136 121 116 129 For the above population data: (a) Compute the mean, (b) Determine the median, (c) Compute the variance, (d) Compute the standard deviation, (e) Compute the corresponding z-score for each weekly visitation, (f) Verify that the percentages of the population with z-scores within the intervals (-1.5,1.5) and (-2,2) conform to Chebyshev's Rule, (g) Construct a Stem-and-Leaf Display for the visitation data, and (h) Construct, using Minitab, a frequency histogram with: (i) intervals 10-visitations wide, over the domain 80-to-140, (ii) first value in Minitab's lower interval-definition box to be left endpoint of first interval (here, tick marks and values at the endpoints of each interval), (iii) mean and median marked by vertical lines, and (iv) z-scores below each x-axis value and the mean. Hints and Histogram for Problem 2: Centrality, Spreads, Normality, and Chebyshev's Rule

Choice Gifts for Birthday, Graduation, Mother's Day, Father's Day, Engagement, Anniversary, an Evening Out, or a Trip Abroad

Links to Amazon.com

Jewelry by Type: Earrings - Necklaces - Pendants - Brooches - Cufflinks - Money Clips

Watches: Men's Watches - Men's Watches by Gucci - Men's Watches by Movado - Men's Watches by Tissot - Men's Watches by Cartier - Women's Watches - Women's Watches by Gucci - Women's Watches by Movado

Thank you for visiting and patronizing Math on Info.

 

Top