Nationally, the distribution of weapons used in robberies is as shown in the table.

The data on the following page represent the weapon of choice in 1652 robberies on school property.

(a) Does the distribution of weapon choice in robberies in schools follow the national distribution? Use the a = 0.05 level of significance.

(b) Compare the observed and expected counts for each category. What does this information tell you?

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Weapon Proportion Other Gun Knife Strong-arm 0.40 0.42 0.09 0.09