QMS 102 Study Guide - Midterm Guide: Table Table, Central Tendency, Melco Pbl Holdings

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: All

Document Summary

Question 1 [6 marks] the following sample data was obtained at 8pm at a popular downtown restaurant. There were 15 tables occupied at that time. Question 2 (10 marks) the following data in table a that was published by statistics canada. (only the answer (correct to two decimal places) inserted in the space provided below, will be marked. ) Table a: number of persons with high pressure. Source: statistics canada, cansim, table (for fee) 105-0501. 690 (1) the coefficient of variation for the number of males with high pressure in 2003"" is. 155. 27% (2) the coefficient of variation for the number of males with high pressure in 2008"" is. A sample of 100 test grades has a mean of 79 and standard deviation 5. Unfortunately, it has just been discovered that two ""actual" test grades "80" each were erroneously recorded as 76 and 84 . If the instructor makes this correction to the data, find the (new) sample mean.