Question

Choose the proper statistical technique to use for each scenario and match from the list below.

A) One sample test for a mean

B) One sample test for a proportion

C) Two sample test for means- independent

D) Two sample test for means – paired

E) Two sample test for proportions

F) Chi square test of independence

G) Chi square test for proportions

H) One Way Analysis of Variance

I) Correlation

J) Simple regression

K) Multiple regression

L) Time series forecasting

1)

The marketing manager of a tourist company wants to be able to predict the number of calls to a toll free number asking for pamphlets, maps and other tourist related information based upon the number of advertisements placed the previous week, the number of calls received the previous week, and the number of airline tour bookings for the current week.

2)

In a study of human behavior, we found that 60 out of 80 adult females looked both ways before crossing a street if they were alone as opposed to 49 out of 52 females when being accompanied by one or more youngsters. Is the adult more likely to look both ways when accompanied by youngsters?

3)

Is there a difference in the percent of college and university professors who use computers on the job as compared to teachers at the high school level and below?

4)

A cab company wants to know if there is a difference in the average fares collected for the day, swing and graveyard shifts.

5)

The human resources manager for a medium sized business is interested in predicting the dollar value of medical expenditures filed by employees of her company in 2006 based upon the medical expenditures made by employees over the previous seven years.

6)

Suppose that administrators at a college believe that the proportion of students preferring classes at night exceeds .3. From a sample of 200 students, 66 indicate that they prefer night classes. Does this support the administrators claim?

7)

A plant manager has collected productivity data for a sample of workers, intending to see whether there is a difference in the number of units they produce on Monday versus Thursday.

8)

A leading beer brewer is considering five different types of advertising displays for a new low calorie beer. The average monthly sales for the ads A, B, C, D, and E are $1292, 1015, 1107, 1358, 1200 respectively. Does it make a difference as to which display ad to use?

9)

A personnel director wants to determine if there is a relationship between the number of years an employee has worked and the number of shares of company stock that they own.

10)

We want to predict fuel consumption in billions of gallons based upon the flying hours of turboprop general aviation aircraft.

Answer 1

1) multiple regression

2) two sample for two proportions

3) two sample for two proportion

4) one way of ANOVA

5) time series forecasting

6) one sample for proportion.

7) two sample test for means -related

8) one way of analysis of variance

9) simple correlation

10) simple regression.