Which item, listed below, is a requirement for the one-sample t test?
a. The population must have been tested favorably for its degree of robustness.
b. Any outliers must be within ?5 standard deviations.
c. Regression slopes must equal zero.
d. The sampled population should contain values that are approximately normally distributed.
Ans: D
You might also like to view...
____________ is the best teacher for young children
Fill in the blank(s) with correct word
Children in wheelchairs can practice throwing ________
Fill in the blank(s) with correct word
Ms. Smythe keeps Eric after school whenever he swears in class. Even though Eric has been kept after school each day for the past three weeks, his swearing hasn't decreased at all—in fact, it has steadily increased. Given what we know about the effects of punishment on behavior, Ms. Smythe should probably conclude that:
A) Her punishment is temporarily suppressing Eric's swearing. B) The punishment is too severe. C) Eric's swearing will decrease eventually. D) Staying after school is reinforcing for Eric.
A sample of size ______ would have the narrowest confidence interval for the mean.
a. N = 140 b. N = 200 c. N = 300 d. N = 425