QUESTION FIVE:a) Explain in general the importance of measures of central tendency, measures ofvariation and measures of normality in business decision making.b) The table below shows the frequency distribution for the number of minutes per weekspent watching TV by residents of Nyali in Mombasa.Viewing Time(minutes)300-399Number ofResidents14400-49946500-59958600-69976700-799800-8996862900-999481000-1099221100- 11996.Total400Required:By calculating the Mean, Mode, Median, Standard Deviation and First andSecond Pearsonian Moment Coefficients of Skewness comment on theSkewness of the distribution.Assuming the distribution approximates a Normal Distribution what proportion ofthe residents:ii.a) Spend less than 480 hours watching televisionb) Spend between 725 and 1025 hours watching television.c) Spend more than 800 hours watching television.

Given information: Viewing Time (Minutes) Number of residents 300 to 399 14 400 to 499 46…

Answered: QUESTION FIVE: a) Explain in general…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An article gave the following data on median worker pay (in thousands of dollars) and the 1-year percent change in stock price for the 13 highest paying companies in the United States. Percent Change in Stock Price Company Company 1 Company 2 Company 3 Company 4 Company 5 Company 6 Company 7 Company 8 Company 9 Company 10 Company 11 Company 12 Company 13 80 60 40 20 Median Worker Pay - 20 - 40 USE SALT 134.7 132.2 125.0 122.8 122.5 121.2 121.2 119.0 118.0 118.0 117.6 117.4 (a) Construct a scatterplot for these data. Percent Change in Stock Price 115.1 115 120 125 130 135 140 21.5 92.4 34.0 52.0 41.8 2.7 5.0 30.2 8.1 37.5 15.7 21.8 -44.8 Median Worker Pay Percent Change in Stock Price 80 60 40 20 - 20 -40 115 120 125 130 135 140 (b) Calculate the value of the correlation coefficient. (Round your answer to four decimal places.) Median Worker Pay Interpret the correlation coefficient. O There is a moderate, positive association between the percent change in stock price and median worker…
b) The share prices of a company in Mumbai and Kolkata markets during the last ten months are recorded below: Month Mumbai Kolkata January 105 108 February 120 117 March 115 120 April 118 130 May 130 100 June 127 125 July 109 125 August 110 120 September 104 110 October 112 135 Determine the arithmetic mean and standard deviation of prices of shares. In which market are the share prices more stable?
4) The table shows, for the years 1997–2012, the mean hourly wage for residents of the town of Pity Me and the mean weekly rent paid by the residents. Mean hourly wage (dollars) Mean hour. Mean weekly rent (dollars) Mean weekly rent (dollars) Year Year (dollar 116 1997 57 10.38 2005 28.99 59 113 1998 10.89 2006 28.63 2007 1999 62 11.96 112 36.75 14.55 2000 63 12.46 2008 86 17.90 2001 86 17.72 2009 90 2002 2010 119 28.07 90 14.67 131 35.24 2003 2011 17.97 100 122 2004 2012 22.23 31.87 115 Find the least squares line that uses mean hourly wage to predict mean weekly rent. Round values to the nearest ten-thousandth. Include a scatter plot with the regression lino
I.
3. Find Mean, Median and Mode of the following frequency distribution and comment on the results: Daily Wages No, of employees 4-6 2 6-8 8-10 10 10-12 8 12-14 3 14-16
2. The following are the grade point averages of 30 students recently admitted to the graduate program in the Department of Industrial Engineering and Operations Research at the University of California at Berkeley. 3.46, 3.72, 3.95, 3.55, 3.62, 3.80, 3.86, 3.71, 3.56, 3.49, 3.96, 3.90, 3.70, 3.61. 3.72, 3.65, 3.48, 3.87, 3.82, 3.91, 3.69, 3.67, 3.72, 3.66, 3.79, 3.75, 3.93, 3.74, 3.50, 3.83 (b) Calculate the sample mean x".
1. Explain the MVA table based image.
The frequency distribution table
The following frequency distribution gives the credit card debt of bank customers. Debt Frequency $0- $999 100 $1000 $1999 300 $2000 - $2999 1200 $3000 - $3999 1100 $4000 $4999 600 $5000 - $5999 200 Give the class boundaries. $999 O $1999.50, $2999.50, $3999.50, $4999.50 $1999.05, $2999.05, $3999.05, $4999.05 O $1000 « Previous

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