Suppose a College Is Planning to Turn a Grassy Area

question 79

Multiple Choice

Suppose a college is planning to turn a grassy area into a parking lot, and a researcher wants to investigate students' response about this change.To conduct her study, she plans to give a questionnaire to a random sample of students.It is likely that

• A)her results will generalize to the population of interest to her.
• B)she will not be able to generalize her results because she is using a convenience sample.
• C)if she repeated the study with another random sample, she would get very different results.
• D)her findings are not representative of the attitudes of students on the campus.

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Definitions:

Exponential Smoothing Model

A forecasting technique that applies decreasing weights to past observations as they recede into the past.

Level Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true, typically denoted as alpha (α).

RMSE

Root Mean Square Error, a measure of the magnitude of differences between values predicted by a model or an estimator and the values observed.