Statistics Chapter Review

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.

This is a form of:

• Simple Random Sampling

• Convenience Sampling

• Cluster Sampling

• Systematic Sampling

A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey.

Which sampling method is being used in the example above?

• Stratified.

• Systematic

• Cluster

• Biased.

A teacher wants to know how well her students are doing on a topic. She randomly picks one class to survey.

Which sampling method is being used in the example above?

• Simple Random

• Cluster

• Stratified

• Systematic

Identify the population being studied.

The heights of 13 out of 35 corn plants at Mr. Lonardo's greenhouse.

• All corn plants at Mr. Lonardo's greenhouse.

• The 13 corn plants at Mr. Lonardo's greenhouse.

• All corn plants in greenhouses.

Bank account numbers are an example of which type of data?

• Statistic

• Qualitative

• Inferential

• Quantitative

Determine whether an observational or experimental study is appropriate to address the following statement.

A general manager of a restaurant wants to find out if her customer base is shrinking.

• Observational

• Experimental

Determine whether the statement describes a population or a sample.

The types of cars of all the employees at a software company.

• Population

• Sample

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

56% of all the students at the local university eat out more than twice a week.

• Population Parameter

• Sample Statistic