Question 6: Let us consider the following data on the amounts of time (in minutes) it took a certain person to drive to work, Monday through Friday, along four different routes:

Monday Tuesday Wednesday Thursday Friday

Route 1 22 26 25 25 31

Route 2 25 27 28 26 29

Route 3 26 29 33 30 33

Route 4 y 28 27 30 30

Estimate the missing observation ‘y’ for the following data and test at the 1% level of

significance whether the differences among the means obtained for the different routes are

significant and also whether the differences among the means obtained for the different days of

the week are significant.​