Research Proposal Design Essay Example | Topics and Well Written Essays - 1000 words

Research Proposal Design - Essay ExampleStandard deviation = $21,200. Standard deviation is work out as the square root of the variance variance is calculated as follows, where M is the mean and N is the total number of scores.Determine the coefficient of skewness utilize Pearsons method. 0.041. This is calculated as Sk = 3( - ) / Sx where denotes mean, denotes median, and Sx denotes the sample standard deviation. A value Question 3, Part 2 The annual incomes of officers of another firm similar to TMV Industries were also studied. The mean was $129,000 and the standard deviation $8,612. Compare the means and dispersions in the two firms.The mean income of officers in the two firms is almost identical. However, the dispersion as measured by the higher(prenominal) standard deviation of the second firm indicates that its officers incomes have a greater variation than TMVs officers.Question 4 Determine the mean and the standard deviation of the quest frequency distribution. Mean = 12 .7 standard deviation = 5.2. Class Frequency 0 up to 5 2 5 up to 10 7 10 up to 15 12 15 up to 20 6 20 up to 25 3 ReferencesStandard deviation calculated using a frequency table. (n.d.). Produced for StatisticsCanada. Retrieved May 15, 2006, from http//www.statcan.ca/english/edu/power/ch12/variance.htmex2.Wikipedia.com. (n.d.). Variance standard deviation frequency distribution coefficient of skewness Pearsons method. Retrieved May 15,