Stats Lecture 1

Determine whether the statement describes a descriptive or inferential statistic. 71% of all babies born at the local hospital last year were boys.

Descriptive Statistic

Determine whether the statement describes a descriptive or inferential statistic. A survey of 3389 people revealed that 54% are self-conscious about their weight; therefore it can be assumed that 54% of the U.S. population are self-conscious about their weight.

Inferential Statistic

Determine whether the statement describes a population or a sample. The heights of all the green bean plants at Mr. Lonardo's greenhouse.

Population

Determine if the numerical value describes a population parameter or a sample statistic. 59% of all freshmen at your school reside on campus.

Population Parameter

Identify the population being studied and the sample chosen. The number of times 1010 out of 2020 students on your floor order pizza in a week.

Population: The 20 students on your floor Sample: The 10 students selected on your floor

Determine whether the statement describes a population or a sample. The final exam scores of 11 out of the 25 students in your biology class.

Sample

Identify the sample chosen for the study. The high school GPAs of a sample of 22 professors at the local college.

The 22 professors at the local college

Identify the population being studied. The number of times 15 out of 30 students on your floor order take-out in a week.

The 30 students on your floor

Determine if the numerical value describes a parameter or a statistic. A recent poll of 3821 home owners in Ohio showed that the average price of a house in the U.S. is $288,000

Sample Statistic

Determine if the numerical value describes a parameter or a statistic. A survey of 3775 people revealed that 75% of the U.S. population has a college degree.

Sample Statistic