Stat 200 Homework Solutions

Feb 3rd, 2012
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Homework solutions to 30 questions on one of the Stat 200 assignment. It covers descriptive stats, probability, regression, testing of hypothesis etc.

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.Answer all 30 questions. Make sure your answers are as complete as possible. Show all of your work and reasoning. In particular, when there are calculations involved, you must show how you come up with your answers with critical work and/or necessary tables. Answers that come straight from programs or software packages will not be accepted.This exam has 300 total points.Refer to the following table for Questions 1, 2, and 3. Show all work. Just the answer, without supporting work, will receive no credit.The table shows temperatures on the first 12 days of October in a small town in Maryland.DateTemperatureDateTemperatureDateTemperatureOct 173Oct 553Oct 966Oct 265Oct 652Oct 1075Oct 365Oct 762Oct 1152Oct 470Oct 855Oct 12571.Determine the five-number summary for this data.(10 pts)2.Determine the mean temperature.(3 pts)3.Determine the mode(s), if any.(2 pts)1. Obtain the five-number summary for the given data.The ordered series needed to obtain the five-number summary is given below.525253555762656566707375Minimum = 52First Quartile = Mean of the 3rd and the 4th terms = (53 + 55)/2 = 54.5Median = Mean of the two middle terms = (62 + 65)/2 = 127/2 = 63.5Third quartile = Mean of the 9th and the 10th terms = (66 + 70)/2 = 68 Maximum = 752. The mean temperature is,.3. The mode(s) is (are) the highest frequent observation(s) in the given data. In the given data two observations 52 an

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