Basis statistics test ( pareto graph, stem leaf plot etc)

Jul 1st, 2016
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This note consists of a solved statistics test in which following questions are asked. 1) A class of 15 students was asked the following question “What is your favorite season of the year?” The table below represents the frequency of responses.Create a Pareto Chart (based on frequency) for the given data. 2. Please use the following data set that represents a simple random sample of twenty five scores from a seventh grade math exam. 3.) Create a stem-and-leaf plot of the sample exam scores. 4. ) Create a frequency table with 5 classes that includes relative frequency of the sample exam scores. 5) Using the frequency table created from question 3 create a frequency histogram of the sample exam scores. 6.9) Suppose the population of seventh grade exam scores was normally distributed with a population mean of 72.5 and a population standard deviation of 8.2. Joe scored a 60 on the exam. a. Calculate Joe’s Z score (round answer to the nearest .01), b. Please describe briefly in your words

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Instructions: Please put answers on this exam. Staple and label any scrap used.1) A class of 15 students was asked the following question What is your favorite season ofthe year? The table below represents the frequency of responses.SeasonSpringSummerFallWinterFrequency4623Create a Pareto Chart (based on frequency) for the table above.765120%Frequency100%Cumlative %80%460%340%2120%00%SpringSummerFallWinterFor Questions 2 8 Please use the following data set that represents a simple randomsample of twenty five scores from a seventh grade math exam.86 51 66 69 74 70 70 86 68 69 78 66 5471 58 82 67 65 84 75 55 70 62 49 932) Create a stem-and-leaf plot of the sample exam scores.First arrange the data in ascending order49 51 54 55 58 62 65 66 66 67 68 69 6970 70 70 71 74 75 78 82 84 86 86 93Stem456789Leaf91458256678990001458246633) Create a frequency table with 5 classes that includes relative frequency of the sampleexam scores.Class45-5455-6465-7475-8485-95Frequency3312434) Using the frequency table created from question 3 create a frequency histogram of thesample exam scores.14Frequency12108642045-5455-6465-7475-8485-955) Measures of center.a.Calculate the mean of the exam scoresMean = 69.52b. Calculate the median of the exam scoresMedian = 696) Using the statistical features of your calculator (or by hand), calculate the samplestandard devi

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