A busy grocery store in San Antonio captures the time per item it takes to check out customers during their peak time. (The total time for the customer was divided by the number of items for that customer. If a customer took 8 minutes, or 480 seconds, to check out and purchased 24 items, the time would be 20). A sample of times is calculated for each cashier. They want to compare 2 cashiers. The following are the average time per item scanned in seconds for each cashier: Cashier 1Cashier 2Time per Item ScannedTime per Item Scanned202410165219605565455836405382940522545351540193528272815301628 18 19 Compare the following (a through k) for these two cashiers and then help the store determine which of the two cashiers has better metrics (explain why): Cashier 1Cashier 2d. Q3 (or 75thPercentile e. Standard Deviations f. Ranges

Hence, Q3 = 49 Standard deviation = 16.7053 Range = 55

Answered: A busy grocery store in San Antonio…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

A busy grocery store in San Antonio captures the time per item it takes to check out customers during their peak time. (The total time for the customer was divided by the number of items for that customer. If a customer took 8 minutes, or 480 seconds, to check out and purchased 24 items, the time would be 20). A sample of times is calculated for each cashier. They want to compare 2 cashiers. The following are the average time per item scanned in seconds for each cashier:

Cashier 1	Cashier 2
Time per Item Scanned	Time per Item Scanned
20	24
10	16
52	19
60	55
65	45
58	36
40	5
38	29
40	52
25	45
35	15
40	19
35	28
27	28
15	30
16	28
	18
	19

Compare the following (a through k) for these two cashiers and then help the store determine which of the two cashiers has better metrics (explain why):