According to the text is to nonprobability sampling as is to probability sampling.
a. quota, snowballing
b. convenience, simple
c. simple, stratified
d. cluster, snowballing
A subject variable is a characteristic or attribute of a participant that cannot impact a study.
Indicate whether the statement is true or false
Callie is studying the likelihood that college students will take 8am classes. To look at this likelihood, Callie has students respond on a 7-point scale, where 1 is not at all likely and 7 is very likely.
Callie is using a(n) scale to look at the likelihood of college students taking 8am classes.
a. ordinal
b. nominal
c. ratio
d. interval
Using the Heinz ketchup example, write the following hypothesis in symbols : People are more willing to buy red ketchup than green ketchup.
a. H1 (red ketchup) > (green ketchup)
b. H0 (red ketchup) < (green ketchup)
c. H1 (red ketchup) = (green ketchup)
d. H0 (red ketchup) > (green ketchup)
During the late 1980s and the early 1990s the Pepsi Challenge was in full swing. During the challenge, participants were asked to taste cola from both Coke and Pepsi.
Once they had tasted both drinks, the participants were asked to report which was better tasting. The results indicated that participants found Pepsi products to be better tasting. What is the dependent variable in this study?
a. Pepsi challenge
b. reported taste of the drinks
c. the different colas
d. the labels on the drinks
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