Descriptive and Inferential Statistics Answers

Subtracting the lowest score in a data set from the highest is the appropriate way to calculate the __________. A.range B.medianC.standard deviationD.mode

The average value of a given set of data is the mode.

The statement “More high school boys than girls will disagree with school rules” is an example of a(n) __________. A.invalid research claimB.inferential statistics studyC.directional research hypothesisD.nondirectional research hypothesis

A histogram is a type of frequency __________. A.dataB.boxC.distributionD.line

Which of the following is not commonly studied in psychology?A.ageB.sleep patternsC.aggressionD.human origins

Inferential statistics allows a researcher to make inferences about a specific population based on data taken from a sample.

If Emma received a standard score on a test that was ranked in the 82nd percentile, it indicates that __________. A.18% of students scored lower than EmmaB.82% of students scored lower than EmmaC.Emma received a B on her testD.Emma answered 18% of the test questions wrong

Standard deviation refers to the __________.A.statistics used to organize, summarize, and describe sample dataB.value within a given set of data in its original formC.average distance between variable scores and the mean in a set of dataD.difference between the largest and smallest variable scores in a set of data

A researcher may use a two-tailed test to evaluate a Nondirectional hypothesis. Please select the best answer from the choices provided

A researcher may claim a causal relationship between variables if one variable influences another.