A restaurant manager wants to investigate the effect of using wine in sauces on the amount of money the restaurant makes per day. What type of variable is the presence or absence of wine in the sauces?
a) control
b) dependent
c) extraneous
d) independent
ANS: d
Psychology
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A sample of n = 4 scores with SS = 48 has a variance of s2=16 and an estimated standard error of 2
Indicate whether the statement is true or false
Psychology
In the ideal normal curve, 95% of the population falls within _____ standard deviation(s) of the mean
a. one b. two c. three d. four
Psychology
This provides us with the square root of the pooled variance divided by the first sample size plus the pooled variance divided by the second sample size.
A. one-way ANOVA B. independent samples t-test C. estimated standard error D. Levine's test
Psychology
In this study, what is the independent variable?
A. quiet B. constant C. outgoing D. residual
Psychology