Mathematics, 03.12.2019 02:31 vorequeen
Asurvey conducted five years ago by the health center at a university showed that 18% of the students smoked at the time. this year a new survey was conducted on a random sample of 200 students from this university, and it was found that 50 of them smoke. we want to find if these data provide convincing evidence to suggest that the percentage of students who smoke has changed over the last five years. what are the test statistic (z) and p-value of the test?
Answers: 3
Mathematics, 21.06.2019 15:00
Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.
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Mathematics, 21.06.2019 20:10
Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12
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Mathematics, 21.06.2019 22:10
Which expression and diagram represent “renee biked four times as far this month as last month”?
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Mathematics, 22.06.2019 01:10
Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.
Answers: 3
Asurvey conducted five years ago by the health center at a university showed that 18% of the student...
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