15.64 A delivery company manager needs information on the mean delivery time (in minutes) for five different

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15.64 A delivery company manager needs information on the mean delivery time (in minutes) for five different locations in Sichuan, China—Chengdu, Leshan City, Garze, Jiuzhaigou County, and Daocheng County. He randomly selected 25 delivery records of his staff members.

The sum of squares delivery time between and within the 5 locations are given in the accompanying table.

Complete the analysis of variance table and write a conclusion for your answer at the 1% significance level.

Source of Variation Sum of Squares Between locations 53.96 Within locations 46.23 Total 100.19

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Muhammad Salman Alvi

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