Wednesday
August 27, 2014

Homework Help: math

Posted by nurul on Thursday, December 8, 2011 at 9:44pm.

A bank with a branch located in a commercial district of a city has developed an improved process for serving customers during the noon to 1.00 pm lunch period. The waiting time (defined as the time elapsed from when the customer enters the line until he or she reaches the teller window) of all customers during this hour is recorded over a period of one week. A random sample of 15 customers is selected, and the results (in minutes) are as follows:
4.21 5.55 3.02 5.13 4.77 2.34 3.54 3.20 4.50 6.10 0.38 5.12 6.46 6.19 3.79
Suppose that another branch located in a residential area is also concerned with the noon to 1.00 pm lunch period. A random sample of 15 customers is selected, and the results are as follows:
9.66 5.90 8.02 5.79 8.73 3.82 8.01 8.35 10.49 6.68 5.64 4.08 6.17 9.91 5.47
a) Is there evidence of a difference in the variability of the waiting time between the two branches? (Use 5% level of significance).

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

college math - 3.15 A bank branch located in a commercial district of a city has...
Stats - A bank with a branch located in a commercial district of a city has ...
math - Danny's Diner server 17 customers during lunch.There were twice that many...
statistics - 1. Observe the number of customers visiting a particular ATM Centre...
English - 1. He has lunch at 12:00 p.m. 2. He has lunch at noon. 3. He has lunch...
stats 3 - 2. Collect the data pertaining to the number of customers serviced (by...
Math - On Saturday, 124 customers went into the Sandwich Shop. Of those ...
Business Communications (English) - (1) should there be a comma before and after...
math - it is 9 am yor family vacation stars in new york city with a final ...
programming - Consider the following situation - checkout line in a counter. The...

Search
Members