Determine if it is a population or a sample

1. The ages of all the coaches in the NFL.

Determine if it is a parameter or a statistic.

2. A survey of 1,420 people in the U.S. revealed that 36% of those surveyed have debt.

Determine if the numerical values describes a population parameter or a sample statistic.

3. 48% of all freshmen at a college reside on campus.

Identify the sampling technique used for the following study.

4. A pollster interviews each student in local high school.

Fill in the blank

5. Results sometimes produce flawed conclusions which can be a form of _______.

Classify the following data as a.) qualitative or quantitative, b.) discrete or continuous, or neither, and c.) indicate the level of measurement for the data.

6. Birth years of each person in your family.

Determine class width of the following data using five classes. Round answer to nearest integer. State answer as an integer.

7. 1595, 1599, 1685, 1699, 1699, 1699, 1699, 1757, 1787, 1799, 1799, 1885, 1888, 1899, 1899, 1899, 1984, 1999, 1999, 1999.

Identify the sampling technique used for the following study.

8. Include each member of the group you wish to study.

State class boundaries for given information.

9. Find the boundaries of the fifth class, given that the midpoint of the first class is 1,250, and the class width is 100.

Answer the following

10. A bookstore sells on average 1,800 books each month. The pie displays the most popular book categories, by percentage, each month. Find the number of nonfiction books sold each month. Round answer to nearest integer.

Categories of book sold: Nonfiction= 39.1%, Reference= 11.7%, Other= 11.7%, Computer= 30.2%, Science Fiction= 9.4%

Identify the population or the sample being studied.

11. The number of times 12 out of all students on your floor order fast food in a week.

Calculate Sample Variance

12. 8, 13, 16, 9, 19, 7

Calculate standard deviation

13. 8, 13, 16, 9, 19, 7