Question
You run a study in which you compare the mean of a sample to a population distribution.You know the mean of the population, but not
You run a study in which you compare the mean of a sample to a population distribution.You know the mean of the population, but not the variance.Which statistical test do you use?
a. t test for independent means
b. t test for single sample
c. Z test
d. One-way ANOVA
You conduct a study in which you want to know if anxiety increases in a group when exposed to noise. You compare difference scores of anxiety to a normally-distributed population of which you know neither the mean nor the variance, but predict a mean difference of 0.Which test do you use?
a)t test for dependent means
b) t test for independent means
c) t test for single sample
d) one-way ANOVA
You run an experiment and know that the population you're drawing your scores from is definitely not normally distributed.Your test will be:
a. Parametric
b. Nonparametric
c. Transformed
d. The Z test
The formula for a Z score is....
a. The raw score minus the mean, divided by the standard deviation
b. The square-root of the raw score minus the mean, divided by the number of scores
c. The ratio of the raw score to the mean
d. The variance squared
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