Statistical Survey

Interpreting survey results: How can you determine the margin of error in a survey?

• By using the formula: Margin of Error = Critical Value x Standard Deviation / Square Root of Sample Size

• By asking a magic eight ball

• By flipping a coin

• By taking the mean of each category, and taking the mean of the means.

A sample is:

• a subset of the population.

• the entire population.

• a group similar to the population.

• something free you get at Costco.

The number of times a number or item occurs in a data set.

• frequency

• data

• mean

• mode

The observation or value that occurs the most

• average

• median

• mean

• mode

_______ is the entire group of objects or individuals considered for a survey.

• Sample

• Population

• Random Sample

• Quartile

A survey is carried out at Penn State Altoona to estimate the proportion of all undergraduate students living at home during the current term. Of the 3,838 undergraduate students enrolled at the campus, a random sample of 100 was surveyed. What is the population of the study?

• All the 3,838 undergraduate students enrolled at the campus

• The 100 who were surveyed

• All the students in universities across America

• All students living at home in the current term.

What is the entire group studied called?

• sample

• population

• class

• experiment

The population in a statistical study is:

• Part of the group we want information about.

• A random part of the group we want information about.

• The entire group we want information about.

• A similar group we want information about.

A question that anticipates variability

• statistical question

• observational study

• quantitative data

• population

A method for collecting information by asking one or more questions.

• population

• experiment

• survey

• categorical data