9.1 Local community leaders are concemed about the distribution of homicides in their small town. The local police department broke the city into six recognizable neighborhoods of the same size and discovered the following distribution of homicides Neighbour Number of Homicide A. 14 17 7 10 Community leaders would like to know whether the homicides are randomly distributed across these six neighborhoods. a. Use a 5% level of significance and outline each of the steps required in a test of statistical significance. b. What can you conclude about the distribution of homicides across these six neighborhoods?

Consider the following two sample data sets. Set 1: 7 5 3 8 9 Set 2: 8 13 14 2 5     a. Calculate the coefficient of variation for each data set. b. Which data set has less consistency​ (or more​ variability)?

The city of Hampton is surveying households to see if the number of cats per household has changed over the past decade. The last known average of cats per household was 1.08. What statistical procedure should you use to analyze these data? O one sample z test Oone sample t test O correlated groups t test O independent groups t test

The fill size for a small bag of peanuts distributed by a popular airline is 50 grams. The producer wishes to set up a set of control charts for this process and collects the data shown in the table. Item #1 Sample 1 54.5 2 50.6 3 51.1 4 52.7 5 51.7 6 51.1 7 54.0 8 53.2 9 51.9 What is the sample size? a. 4 Ob.9 c. 13 d. 45 Item #2 54.3 53.5 54.3 52.1 51.2 51.5 52.3 50.4 50.2 Item #3 53.8 53.2 50.4 51.3 54.7 54.7 54.7 53.4 50.2 Item #4 50.4 54.9 50.7 51.0 54.3 50.4 51.4 51.4 52.9