Posted by Student on Wednesday, August 13, 2008 at 3:58pm.
A bank with a branch located in a commercial district of a city has developed an improved process for serving customers during the noonto1 p.m. lunch period. The waiting time (operationally 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 stored in the file bank1.xls), 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 noonto1 p.m. lunch period. A random sample of 15 customers is selected (and stored in the file bank2.xls), 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 Assuming that the population variances from both banks are not equal, is there evidence of a difference in the mean waiting time between the two branches? (Use 0.05 level of significance )

Stats  lala, Monday, May 16, 2011 at 12:19pm
help me

Stats  Vikash movva, Tuesday, November 22, 2016 at 8:39am
No there isn't.
Answer This Question
Related Questions
 math  A bank with a branch located in a commercial district of a city has ...
 college math  3.15 A bank branch located in a commercial district of a city has...
 statistics  A study of checkout lines at the Safeway revealed that between 4...
 math  A bank wishing to determine the average amount of time a customer must ...
 statistics  1. Observe the number of customers visiting a particular ATM Centre...
 statistics  The MacBurger restaurant chain claims that the waiting time of ...
 programming  Waiting time in the queue by the driver can be used as a criterion...
 Statistics  Data collected on volcanic eruptions give a mean time between ...
 Math  A small credit has a small branch with two tellers. Arrival rate of ...
 StatisticsProbability  Data collected on volcanic eruptions give a mean time ...
More Related Questions