Exam 1: The Nature of Probability and Statistics

Classifying the fruit in a basket as apple, orange, or banana, is an example of the ___________ level of measurement?

Determine which branch of statistics was used to make the following statement. In an online survey of 500 Virginia Tech students between spring 2010 and spring 2011, 31% Said that they had missed class because of alcohol consumption.

What level of measurement would be applied when doing a survey on the average American's shoe size?

A pollster randomly samples 136 Democrats, 163 Republicans and 17 Independents (all registered voters) in Metro City and asks each poll participant which mayorial candidate He or she prefers. Identify the kind of sample that the pollster is using.

Which branch of statistics would employ probability to predict how many miles one should be able to drive a 2000 Toyota Celica during its lifetime?

Which one of the following data are discrete?

What type of sampling is being employed if the country is divided into economic classes and a sample is chosen from each class to be surveyed?

Based on her electric bills from last year, Mrs. Smith expects she will be paying $75/month this year. This is an example of descriptive statistics.

______________ is a decision-making process for evaluating claims about a population, based on information obtained from samples.

Quantitative data can be further classified as continuous or nonsequential.

Statistics is the science of conducting studies to

In an experimental study, manipulation of the_______________ variable is studied to see if it leads to changes in the _______________variable.

A(n) _______________ makes it difficult to determine whether an experimental outcome is due to the applied treatment.

What level of measurement classifies data into mutually exclusive categories in which no order or ranking can be imposed on the data?

Which of the following is the best description of a double-blind experiment?

If a researcher manipulates one of the variables and tries to determine how the manipulation influences other variables, the researcher is conducting a(n)

The names of all 65 students in a professor's class are written on identical slips of paper, and the slips are placed into a large glass jar. Then, the professor selects 6 random slips From the jar. Identify the kind of sample that is being used.

Determine which of the following describes nominal data. i. My favorite days of the week are Friday, Saturday, and Tuesday. ii. My favorite day of the week is Friday, my second-favorite is Saturday, and third-favorite is Tuesday.

A television station interviews five movie viewers after the first showing of a movie. After finding out that all five enjoyed the movie very much, the reporter states that this Movie will definitely be a big hit. This is an example of ____________________.

The variable of height is an example of a quantitative variable.