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Center and spread measures (15 points)Analysts have collected data on the annual number of vacation days of individuals working in three different companies. Below is the number of day vacated in each company:Company 1: 27 22 29 21 19 33 16 20 24 27 28 19Company 2: 12 12 15 9 20 18 17 14 14 2 17 19Company 3: 18 4 22 15 18 19 22 12 12Give a complete comparison of the three distributions, using both Excel graphs and numerical summaries. The analysts used an analysis based on x? and s to compare vacation days in the three groups. Explain why this is reasonably well-justified
