Mat201 Essay

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Module 2 - Case Assignment Measures of Central Tendency MAT201:Basic Statistics Trident University March 12, 2013 1. Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age, to the nearest year. 55 77 64 77 69 63 62 64 85 Sample size is 9 Answer: 616/9 = retirement age is 68 2. A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below. 27 30 201 152 218 212 239 Sample size is 7 Answer: 201 Find the median number of newspapers sold. 3. Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. 59 65 72 51 55 64 77 58 59 Answer: Mode is the value which appears the most. Since all the values in this case appear only once and therefore there no mode value. 4. The amount of time (in hours) that Sam studied for an exam on each of the last five days is given below. Find the mean study time. 1.7 5.2 8.7 2.4 4.9 Study tines equals 22.9 Number of times studied = 5 Answer: 22.9/5 = 4.58 hours 5. The distances (in miles) driven in the past week by each of a company's sales representatives are listed below. Find the median distance driven. 45 70 142 268 290 352 The two middle values are 142 + 268 Find the average = (142 + 268)/2= 410 410/2 = 205 Answer: 205 miles driven Case Assignment Expectations: Use information from the modular background readings as well as any good quality resource you can find. Please cite all sources and provide a reference list at the end of your paper. The following items will be assessed in particular: Your ability to calculate the

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