A __________ provides a range of possible values for the true value in a population, whether that true value is a mean, a proportion, or something else.
Fill in the blank(s) with correct word
Q. 2Achieving statistical significance is equivalent to __________ the idea that chance alone can explain the observed results.
Fill in the blank(s) with correct word
Q. 3Suppose a certain population was reported in the news as being 60 Republican. You take a random sample of 100 people from this population and find that 67 of your sample is Republican. What can you conclude about the news report, based on your sample results?
a. You can't say they are wrong; your results are within the expected limits for a sample this size.
b. A sample of size 100 is never large enough to make any conclusions either way about an entire population.
c. You can say they are wrong because your sample results are too far away from what was reported in the news.
d. None of the above.
Q. 4When someone reports that their results are found to be statistically significant', which type of statistical technique was most likely used?
a. A confidence interval.
b. A hypothesis test.
c. A significance interval.
d. Not enough information to tell.
Q. 5Suppose someone has a theory that something interesting is happening' in the population. What type of statistical technique will they most likely use to prove' or disprove' their theory, a confidence interval or a hypothesis test?
Q. 6Suppose you do not know anything about what the true population mean is, and you want to estimate it using a sample mean. Which statistical technique would you use, a confidence interval or a hypothesis test?
Q. 7Name the two basic techniques researchers use to summarize and draw conclusions about a population based on their statistical results from a sample.
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