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Question:
The following data represents the car tyres life time (in days) for three different companies in India:
Company 1: 300 245 438 460 380 510 490 320 405 482Company 2: 500 470 530 390 480 510 546 464 457 393Company 3: 280 295 320 266 344 325 295 361 349 400
(a) Compute the mean, median, first quartile, and third quartile for each company.
(b) Compute the standard deviation, range and coefficient of variation from the sample data for each company.
(c) Draw a box and whisker plot for each company and put them side by side.
(d) Compare the box plots and describe the skewness of the data.
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