SOLVED

21) Which neighbourhood(s) has the greatest differences in family income? A) Glenbrook B) Meadowbrook C) Elmbrook D) Glenbrook and Elmbrook E) Meadowbrook and Elmbrook 22) Which neighbourhood(s) has the smallest differences in family income? A) Glenbrook B) Meadowbrook C) Elmbrook D) Glenbrook and Elmbrook E) Meadowbrook and Elmbrook 23) In which neighbourhood(s) do half the families have incomes of $28 000 or more? A) Glenbrook B) Meadowbrook C) Elmbrook D) Glenbrook and Elmbrook E) Meadowbrook and Elmbrook 24) Which neighbourhood(s) has the highest number of families with the lowest incomes? A) Glenbrook B) Meadowbrook C) Elmbrook D) Glenbrook and Elmbrook E) Meadowbrook and Elmbrook 25) Which neighbourhood(s) has the 50th percentile of education as a college education? A) Glenbrook B) Meadowbrook C) Elmbrook D) Glenbrook and Elmbrook E) Meadowbrook and Elmbrook 26) Which neighbourhood(s) has a small number of very high income people and a greater proportion of families earning $26 000? A) Glenbrook B) Meadowbrook C) Elmbrook D) Glenbrook and Elmbrook E) Meadowbrook and Elmbrook 27) Which neighbourhood(s) has the greatest variation in years of education? A) Glenbrook B) Meadowbrook C) Elmbrook D) Glenbrook and Elmbrook E) Meadowbrook and Elmbrook 28) Fatima Fashionista wears a size 2 blazer. She went to her favourite clothing store and found that the mean size of the store’s stock of blazers is a size 10 with a standard deviation of 4 sizes. What is her z-score in the distribution of the store’s blazers? A) zero B) 1 C) 2 D) -1.5 E) -2 29) Susan weighs 140 pounds. You learn for the women in her sorority the mean weight is 130 pounds, the median is 125, the mode is 120, and the standard deviation is 10 pounds. What is Susan’s z-score in the distribution weight in the sorority? A) zero B) 1 C) 2 D) 1.5 E) -1 30) All the sales representatives at Acadia Insurance are female, and their mean annual salary is $60 000 with a standard deviation of $5000. All customer account managers are male and they have a mean salary of $80 000 with a standard deviation of $15 000. Heather knows she is one standard deviation above the mean of the sales representatives. She wants to transfer to become the first female customer account manager and will begin at her same salary. After she transfers, compared to the customer account managers her salary will be at what z-score? A) -2 B) -1 C) 0 D) +1 E) +2