Question 4: [does not require SPSS] Pete the postie is accused by his manager of being too slow in completing his mail deliveries. Pete feels he is completing his designated routes within a reasonable amount of time and calls for an investigation. He makes a point of recording the time it takes him to complete each of his four routes and it turns out they each take 110 minutes. On which of the following routes would Pete be considered unusually slow compared to the other posties who deliver on the same routes? Route 1 where the mean time is u = 120 minutes and the standard deviation o = 10 minutes Route 2 where the mean time is u = 60 minutes and the standard deviation o = 20 minutes Route 3 where the mean time is u = 140 minutes and the standard deviation o = 10 minutes Route 4 where the mean time is u = 95 minutes and the standard deviation o = 15 minutes Justify your answer, showing your calculations and quoting the relevant statistics as part of your explanation. Assume the route times are normally distributed