When we reject the null hypothesis in the analysis of variance we can conclude that
a. all of the means are the same.
b. all of the means are different.
c. at least one of the means is different from at least one other mean.
d. only one mean is different from one other mean.
C
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Explain how you go about choosing the best way to present your data.
What will be an ideal response?
Lauren is a huge fan of music, and she attends performances in clubs or concerts nearly every weekend. It is likely that
A. Lauren will experience more hearing loss than her friends who attend concerts less frequently. B. Lauren will experience less hearing loss than her friends who attend concerts less frequently, because her ears will build up a tolerance to loud sounds in general. C. Lauren's attendance will not affect her hearing, as she is only a college student, not a senior citizen. D. Lauren's hearing will not be affected as long as she limits her exposure to 90 minutes each time.
To test whether people in bars drink more when they are in groups than when they are alone, researchers visited all the pubs in a city. They ordered beers and recorded observations on napkins and pieces of newspaper
Why did they keep their identities in disguise? a. They were conducting a double-blind study. b. They wanted to make sure the study had test-retest reliability. c. They needed to determine the experimenter effects in the study at a later point in time. d. They wanted the people they were observing to behave naturally.
The person who conducted the most well-known research on obedience is _______
a. Asch b. Milgram c. Luchens d. Kelley