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Does whether or not a student smokes tell us something about how likely he or she is to live on campus?
a. Explain why students who smoke may be more likely to live off campus than students who don't smoke.
b. Use software to access the student survey data, and carry out a chi-square test for a relationship between smoking and living on campus or not. Report the chi-square statistic and the P-value.
c. State whether or not there is statistical evidence of a relationship.
d. Is the sample proportion living off campus higher for the smokers?
e. Suppose a claim is made that students who live on campus are less likely to eventually die of cancer. Tell whether or not you are willing to believe this claim, and why.
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when taking an exam some students quickly answer all the questions they know how to do. if they go back and revise
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Manufacturing and Product Development Silver bars used in trading on the bullion market are manufactured to certain height, width, and length specifications.
Find the P value or an interval containing the P value for the sample test statistic.
A commercial jet aircraft has four engines. For an aircraft in flight to land safely, at least two engines should be in working condition.
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