Mathematics, 05.05.2020 20:25, amuijakobp78deg
It has been observed that some persons who suffer acute heartburn, again suffer acute heartburn within one year of the first episode. This is due, in part, to damage from the first episode. The performance of a new drug designed to prevent a second episode is to be tested for its effectiveness in preventing a second episode. In order to do this two groups of people suffering a first episode are selected. There are 45 people in the first group and this group will be administered the new drug. There are 75 people in the second group and this group will be administered a placebo. After one year, 12% of the first group has a second episode and 14% of the second group has a second episode. Conduct a hypothesis test to determine, at the significance level 0.1, whether there is reason to believe that the true percentage of those in the first group who suffer a second episode is less than the true percentage of those in the second group who suffer a second episode? Select the [Alternative Hypothesis, Value of the Test Statistic]. a) [p1 < p2 , -0.3129] b) [p1 ≠ p2 , -0.3129] c) [p1 > p2 , -0.3129] d) [p1 ≠ p2 , -0.2129] e) [p1 = p2 , -0.3129] f) None of the above
Answers: 3
Mathematics, 22.06.2019 00:10, kadestew21
A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.
Answers: 1
Mathematics, 22.06.2019 00:30, mitchellmarquite
Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?
Answers: 3
Mathematics, 22.06.2019 01:30, nandinipp0303
Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot
Answers: 3
It has been observed that some persons who suffer acute heartburn, again suffer acute heartburn with...
English, 08.10.2019 23:10
Mathematics, 08.10.2019 23:10
Health, 08.10.2019 23:10
History, 08.10.2019 23:10