Title: A researcher is wondering whether the drinking habits of adults in a certain region of the country ...
Post by: zar on Mar 18, 2020
A researcher is wondering whether the drinking habits of adults in a certain region of the country are in the same proportion as the general population of adults. Suppose a recent study stated that the proportion of adults who reported drinking once a week or less in the last month was 0.26. The researcher's null hypothesis for this test is H0: p = 0.26 and the alternative hypothesis is 
The researcher collected data from a random sample of 75 adults in the region of interest.
Check that the conditions hold so that the sampling distribution of the z-statistic will approximately follow the standard normal distribution. Are the conditions satisfied? If not, choose the condition that is not satisfied.
▸ No, the population of interest is not large enough to assume independence.
▸ Yes, all the conditions are satisfied.
▸ No, the researcher did not collect a large enough sample.
▸ No, the researcher did not collect a random sample.
The researcher collected data from a random sample of 75 adults in the region of interest.Check that the conditions hold so that the sampling distribution of the z-statistic will approximately follow the standard normal distribution. Are the conditions satisfied? If not, choose the condition that is not satisfied.
▸ No, the population of interest is not large enough to assume independence.
▸ Yes, all the conditions are satisfied.
▸ No, the researcher did not collect a large enough sample.
▸ No, the researcher did not collect a random sample.
Title: A researcher is wondering whether the drinking habits of adults in a certain region of the country ...
Post by: gdchavis1 on Mar 18, 2020
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