On the following page, match the situation on the left with the appropriate inference procedure. You may have to use the options more than once or not at all!!

SITUATIONS:

1. Before they go to market, executives for

a pharmaceutical company want to know if the

percentage of consumers who would be

interested in an alternative to their current OTC

pain medication is more than 18%. They’ll sample

and use α =0.05 to test their market.

2. [SCHOOL] administrators can pull reports from

their student database that contain academic

records and information such as address, phone

number, etc. They want to know the average

number of credit hours students are taking this

term compared to last semester.

3. [SCHOOL] administrators know that students

sometimes leave school because they don’t have

dependable transportation. They wonder how

many miles the average student vehicle has on it.

4. Researchers know that men born in the

US in 1980 have a mean height of 179 cm with a

standard deviation of 7.7 cm. They believe the

spread of heights has remained fairly stable but

that the mean height for men born in 2000 is

different. They’ll use α =0.06 to test their

conjecture.

5. An advertising firm is helping a client to

define their target market so they can develop a

successful ad campaign. They need to estimate

the proportion of men who shop for the item.

6. The same advertising firm also needs to

know the average age of those who buy their

client’s product.

7. Now that [SCHOOL] has so many online course

offerings, administrators claim that students live

more than 20 miles from campus on average and

believe that a sample of 50 students should

provide statistically significant evidence of this.

OPTIONS:

A. Confidence Interval for One

Sample Mean, Sigma Unknown

B. Confidence Interval One Sample

Proportion

C. Confidence Interval for One

Sample Mean, Sigma Known

D. Hypothesis Test for One-Sample

Mean, Sigma Unknown

E. Hypothesis Test for One-Sample

Proportion

F. Hypothesis Test for One-Sample

Mean, Sigma Known

G. No Inference is required since we

can easily obtain information for the

entire population

I'll give you 50 after you answer correctly.