Mathematics, 16.10.2019 19:20 stankyweezle
Astudy was made to determine if the subject matter in a physics course is better understood when a lab constitutes part of the course. students were randomly selected to participate in either a 3-semesterhour course without labs or a 4-semester-hour course with labs. in the section with labs, 11 students made an average grade of 85 with a standard deviation of 4.7, and in the section without labs, 17 students made an average grade of 79 with a standard deviation of 6.1. would you say that the laboratory course increases the average grade by as much as 8 points? use a p-value in your conclusion and assume the populations to be approximately normally distributed with equal variances. g
Answers: 1
Mathematics, 21.06.2019 19:00
If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?
Answers: 2
Mathematics, 21.06.2019 19:30
Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.
Answers: 1
Mathematics, 21.06.2019 19:40
Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297
Answers: 1
Astudy was made to determine if the subject matter in a physics course is better understood when a l...
History, 03.02.2020 23:52
History, 03.02.2020 23:52