In order to reject the null hypothesis when using the t distribution and small samples, we will
a. need a smaller test statistic as compared to larger samples
b. need a larger test statistic as compared to larger samples
c. always use one-tailed tests
d. set alpha very low
b
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A tipping point is a situation in which the rare suddenly becomes commonplace
Indicate whether the statement is true or false
According to the Department of Agriculture, what is the cost of rearing a child born in 2012 to age 18?
a. $100,000 b. $241,000 c. $500,000 d. 2 million dollars
According to symbolic interactionists, the placebo effect is problematic for the Western model of health care because ______.
A. it provides evidence that the symptoms of some diseases and illnesses are socially constructed B. it is difficult to overcome in medical trials of new treatments for illnesses C. it is a psychosomatic phenomenon the existence of which cannot be confirmed or denied by scientific evidence D. pharmaceutical companies routinely sell placebos instead of providing authentic drugs people intend to purchase
In a simple random sample of 120 women and 150 men from a population of 150,000, 25% of the women and 37% of the men are smokers. Suppose you are interested in comparing the proportion of smokers by sex, state the null and the research hypothesis.
What will be an ideal response?