Mathematics, 15.04.2020 20:34 palcochran1313
A study will be conducted to examine a new medicine intended to reduce high blood pressure in adult men who have high blood pressure. As part of the study, a random sample of 40 men with high blood pressure will have their blood pressure measured, and then they will take the new medicine every day for one month. At the end of the month, their blood pressure will be measured again. Of the following, which is the best procedure to investigate whether there will be convincing statistical evidence of a change, on average, in blood pressure for men with high blood pressure who take the new medicine?(A) A one-sample z-test for a proportion (B) A two-sample z-test for a difference between proportions (c)A two-sample i-test for the difference between two means (D) A matched-pairs t-test for a mean difference (E) A chi-square test of independence
Answers: 2
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Mathematics, 21.06.2019 22:30
James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?
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Mathematics, 22.06.2019 00:20
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A study will be conducted to examine a new medicine intended to reduce high blood pressure in adult...
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