The two-way table of column relative frequencies below summarizes survey data on who a person's role model is and their highest
level of education.
Choose 1 answer:
(Choice A)
A person whose role model is a family member is less likely to have an advanced degree than a person whose role model is a friend or acquaintance.
(Choice B)
A person whose role model is a stranger is more likely to have high school than some college as their highest level of education.
(Choice C)
A person whose highest level of education is a bachelor's degree is more likely to have a family member than a stranger as a role model.
(Choice D)
A person whose highest level of education is less than high school is more likely to have a stranger than a friend or acquaintance as a role model.
Choose 1 answer:
(Choice A)
A person whose role model is a family member is less likely to have an advanced degree than a person whose role model is a friend or acquaintance.
(Choice B)
A person whose role model is a stranger is more likely to have high school than some college as their highest level of education.
(Choice C)
A person whose highest level of education is a bachelor's degree is more likely to have a family member than a stranger as a role model.
(Choice D)
A person whose highest level of education is less than high school is more likely to have a stranger than a friend or acquaintance as a role model.
2 answers:
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Answer:
They can either decrease the confidence level or increase the sample size, that is, survey more students.
Step-by-step explanation:
The width of a confidence interval is given by:
In which z is the critical value correponding to the confidence level(higher confidence level, higher z is), is the standard deviation of the population and n is the size of the sample.
The students realize that this interval contains a large margin of error. What can they do to make a narrower interval?
Looking at the formula for M, they can either decrease the confidence level or increase the sample size, that is, survey more students.