Select the correct answer from each drop-down menu. A bank has two branches, one on West Avenue and the other on Water Field Road. The table gives the number of new accounts opened at each branch in the past 10 days.

West Avenue Branch Water Field Road Branch
7 18
9 20
6 12
11 15
7 7
9 6
5 11
12 13
10 19
4 11
The mean absolute deviation of the data for the West Avenue Branch is
. The mean absolute deviation of the data for the Water Field Road Branch is
. Based on the mean absolute deviations for the two data sets, we can conclude that the spread of the data for the West Avenue Branch is
than the spread of the data for the Water Field Road Branch.

You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in: