Mathematics, 09.10.2019 05:00, 721345
2. suppose a new standardized test is given to 100 randomly selected third-grade studentsin new jersey. the sample average scoreyon the test is 58 points and the sample standarddeviationsyis 8 points. a. the authors plan to administer the test to all third-grade students in new jersey. construct a 95% con dence interval for the mean score of all new jersey third graders. b. suppose the same test is given to 200 randomly selected third graders from iowa, pro-ducing a sample average of 62 points and sample standard deviation of 11 points. constructa 90% con dence interval for the di erence in mean scores between iowa and new jersey. c. can you conclude with a high degree of con dence that the population means for iowaand new jersey students are di erent? (what is the standard error of the di erence in thetwo sample means? what is thep-value of the test of no di erence in means versus somedi erence? )
Answers: 1
Mathematics, 21.06.2019 13:30, pstat
What are potential hypotheses (explanations) regarding why there are ecological equivalents between many metatherians and eutherians? discuss your hypothesis in terms of the processes that could lead to the current ecologies and distributions of metatherians and eutherians.
Answers: 2
Mathematics, 21.06.2019 19:30, ndurairajownkpq
The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2
Answers: 3
Mathematics, 22.06.2019 01:00, saigeshort
Pentagon abcde is dilated according to the rule do,3(x, y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)
Answers: 3
2. suppose a new standardized test is given to 100 randomly selected third-grade studentsin new jers...
Mathematics, 06.03.2020 23:59
Mathematics, 06.03.2020 23:59