PSYCH302 CH. 15 READING QUIZ
QUESTIONS AND ANSWERS
The sampling distribution of the mean is important for
-descriptive statistics.
-determining what type of inferential test is appropriate.
-determining if a given sample came from a particular population.
-determining the mean of a sample. - Correct Answers -determining if a given sample
came from a particular population.
Dr. Mai conducts a test of a new anti-malaria drug in Africa and concludes that he may
reject the null hypothesis with a probability level of 0.04. He concludes, therefore, that
his drug works. In reality, however, it does not. Dr. Mai has committed a error.
-logical
-Type I
-Type II
-statistical - Correct Answers -Type I
Danielle conducted a study on cartoon watching and children's attention. She showed
one group an educational cartoon and one group a non-educational cartoon. The group
that saw the educational cartoon showed higher levels of performance on the attention
test. Danielle decided to reject the null hypothesis. Really, what she is doing is saying
that the difference between groups is
-the same between groups
-overgeneralized
-not due to chance
-due to chance - Correct Answers -not due to chance
Changing the alpha level from .05 to .01 would
-decrease the risk of a type I and a type II error.
-increase the risk of a type I and a type II error.
-decrease the risk of a type I error and increase the risk of a type II error.
-increase the risk of a type I error and decrease the risk of a type II error. - Correct
Answers -decrease the risk of a type I error and increase the risk of a type II error.
In his study on canine cognition, Sherman guesses that German Shepherds are more
likely to find hidden objects than other breeds. After he collects his data, he finds that
German Shepherds perform at the same rate as other breeds. In this scenario,
Sherman is engaging in
-symbolic analysis
QUESTIONS AND ANSWERS
The sampling distribution of the mean is important for
-descriptive statistics.
-determining what type of inferential test is appropriate.
-determining if a given sample came from a particular population.
-determining the mean of a sample. - Correct Answers -determining if a given sample
came from a particular population.
Dr. Mai conducts a test of a new anti-malaria drug in Africa and concludes that he may
reject the null hypothesis with a probability level of 0.04. He concludes, therefore, that
his drug works. In reality, however, it does not. Dr. Mai has committed a error.
-logical
-Type I
-Type II
-statistical - Correct Answers -Type I
Danielle conducted a study on cartoon watching and children's attention. She showed
one group an educational cartoon and one group a non-educational cartoon. The group
that saw the educational cartoon showed higher levels of performance on the attention
test. Danielle decided to reject the null hypothesis. Really, what she is doing is saying
that the difference between groups is
-the same between groups
-overgeneralized
-not due to chance
-due to chance - Correct Answers -not due to chance
Changing the alpha level from .05 to .01 would
-decrease the risk of a type I and a type II error.
-increase the risk of a type I and a type II error.
-decrease the risk of a type I error and increase the risk of a type II error.
-increase the risk of a type I error and decrease the risk of a type II error. - Correct
Answers -decrease the risk of a type I error and increase the risk of a type II error.
In his study on canine cognition, Sherman guesses that German Shepherds are more
likely to find hidden objects than other breeds. After he collects his data, he finds that
German Shepherds perform at the same rate as other breeds. In this scenario,
Sherman is engaging in
-symbolic analysis
