Determine whether the given value is a statistic or parameter.
1. Ninety subway sandwiches were sampled and measured after allegations of "Footlong" subs not really being
12 inches in length. The mean of the sample was 11.48 inches.
2. It was found that 392 of all the students in a senior class plan on attending college.
Determine if the following data is quantitative or qualitative.
3. Due to complaints about physical injury from riding a new wooden roller coaster, a safety study is conducted
by first analyzing the number of daily complaints over the last 6 months.
4. A hotel survey asks customers to rate how likely they are to recommend a stay at their hotel to a family
member or friend as "Not Likely", "Likely", or "Definitely Likely"
Consider the following statistical studies. Which method of data collection would you use to collect data
for each study: Observational Study, Experiment, Simulation, or Survey?
5. A study of employee satisfaction at a large corporation.
6. To study the effectiveness of a new diet pill, a research group randomly assigns the diet pill to one group of
individuals while the other group receives a placebo. For 6 months, both groups will follow the same diet
and exercise regime to control for those two variables.
7. A study of the affects an 8.0 or higher earthquake would have in New York City.
8. A researcher is conducting a study about the fatal effects of driving under the influence of sleeping pills.
She collects data by researching old records of fatalities caused due to driving under the influence of
sleeping pills.
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.
9. The temperature of the Indian ocean at various depths.
10. The weights of large-mouth bass at a fishing competition.
11. The ranking of the best restaurants on the Riverwalk.
12. Names of major grocery stores in the U.S.
For problems 13-15, answer the following questions about symbols you've learned (used) this semester.
13. The mean final exam score for an entire class of 122 statistic students at a state university is 76.1. The
value of 76.1 can be represented by which of the following symbols?