The true population mean is expected to fall outside a .99 confidence interval
a. 1% of the time
b. 99% of the time
c. 100% of the time
d. none of these, since the true mean may never fall outside the confidence interval
a
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When constructing a distribution of the number of people favoring each of five different political candidates, you should use:
a. a frequency polygon. b. a bar graph. c. a line graph. d. either a frequency graph or a bar graph.
Nikoleta is a 14-year-old high school student who has been dating heavily for about a year. She and her current boyfriend go out at least twice every week and spend as much time together as they can. Nikoleta is probably
A) more mature than other girls her age. B) more achievement-oriented in school than other girls her age. C) more likely to be depressed than other girls her age. D) less likely to engage in sexual activity than other girls her age.