Statistics PreTest
If we fail to reject the null hypothesis, we can presume that the two variables are not
related to each other. - ANS-True
Ninety-five percent of scores fall between 2 and -2 standard deviations from the mean. -
ANS-True
The most appropriate measure of central tendency depends on the level of
measurement of the variable under consideration. - ANS-True
In a normal distribution the mode, median, and mean will all be the same. - ANS-True
A ______ is a smaller group of data that is selected from a population. - ANS-sample
gender, religious denomination, and political party affiliation - ANS-nominal
strongly agree, agree, disagree, strongly disagree - ANS-ordinal
number of convictions, years of education, annual income - ANS-interval/ratio
Measures of central tendency measure how typical or average a certain variable is. -
ANS-True
For the following data, which is the mode? 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 5, 6 - ANS-3
If a researcher is studying cheating by male and female college students at a large,
public university, then the unit of analysis is gender. - ANS-False
A 'critical value'______. - ANS-separates the regions of rejection and nonrejection
A researcher would have more confidence that the sample mean estimates the
unknown population mean when the sample size is larger. - ANS-True
The variance will always be a larger number than the standard deviation. - ANS-True
If we fail to reject the null hypothesis, we can presume that the two variables are not
related to each other. - ANS-True
Ninety-five percent of scores fall between 2 and -2 standard deviations from the mean. -
ANS-True
The most appropriate measure of central tendency depends on the level of
measurement of the variable under consideration. - ANS-True
In a normal distribution the mode, median, and mean will all be the same. - ANS-True
A ______ is a smaller group of data that is selected from a population. - ANS-sample
gender, religious denomination, and political party affiliation - ANS-nominal
strongly agree, agree, disagree, strongly disagree - ANS-ordinal
number of convictions, years of education, annual income - ANS-interval/ratio
Measures of central tendency measure how typical or average a certain variable is. -
ANS-True
For the following data, which is the mode? 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 5, 6 - ANS-3
If a researcher is studying cheating by male and female college students at a large,
public university, then the unit of analysis is gender. - ANS-False
A 'critical value'______. - ANS-separates the regions of rejection and nonrejection
A researcher would have more confidence that the sample mean estimates the
unknown population mean when the sample size is larger. - ANS-True
The variance will always be a larger number than the standard deviation. - ANS-True
