Question: Sandra Enright, of Techtronics Inc., has been examining the times required for stock pickers to fill orders requested from inventory. In the past, retrieval times followed a normal distribution with a mean value of 3.2 minutes. Sandra is concerned that recent changes to storage locations may have lengthened the average retrieval time. Sandra does not want to order a reorganization of storage locations without good evidence that the mean retrieval time has lengthened; however, she is willing to accept a 5% chance of making this error.

A random sample of retrieval times are recorded in the spreadsheet Q1 S tock picking.xl sx.

1. Calculate descriptive statistics for these data. Does it appear that the average retrieval time has increased?
2. Conduct a test of hypothesis appropriate for Techtronics’ situation, and make a specific recommendation regarding whether or not Sandra should order a storage reorganization.

Price: $2.99

Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document