Descriptive statistics: Number of Coupons
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The following data (X) represent the number of coupons used over a 6 month time period by a sample of 17 shoppers:
81, 68, 70, 100, 94, 47, 66, 70, 82, 110, 105, 60, 70, 66, 90, 78, 85
Use this sample of data to compute: the mean, the median, the mode, the range, the variance, the standard deviation, and the 90th percentile. Provide a brief explanation of what each measure tells us about the data. Also provide the sum of X and the sum of the squared deviations of X from the mean
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The solution provides step by step method for the calculation of descriptive statistics. Formula for the calculation and Interpretations of the results are also included.
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The following data (X) represent the number of coupons used over a 6 month time period by a sample of 17 shoppers:
81, 68, 70, 100, 94, 47, 66, 70, 82, 110, 105, 60, 70, 66, 90, 78, 85
Use this sample of data to compute: the mean, the median, the mode, the range, the variance, the standard deviation, and the 90th percentile. Provide a brief explanation of what each measure tells us about the data. Also provide the sum of X and the sum of the squared deviations of X from the mean.
Answers
X X - X̅ (X - ...
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