Mathematics

Mathematics, 08.07.2019 13:20, tayshhah3945

It is not d it is c i just took the test

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Mathematics, 26.06.2019 20:40, kayolaaaa53

Ten randomly selected people took an iq test a, and next day they took a very similar iq test b. their scores are shown in the table below. person a b c d e f g h i j test a 106 99 95 92 87 127 115 100 77 108 test b 112 101 99 96 90 130 112 99 80 112 1. consider (test a - test b). use a 0.05 significance level to test the claim that people do better on the second test than they do on the first. (note: you may wish to use software.) (a) what test method should be used? a. two sample t b. two sample z c. matched pairs (b) the test statistic is (c) the critical value is (d) is there sufficient evidence to support the claim that people do better on the second test? a. yes b. no 2. construct a 95% confidence interval for the mean of the differences. again, use (test a - test b). < μ

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Mathematics, 13.07.2019 19:30, nabeelunique

Gregorio took two tests. find his z-score for each test. (remember: the number of standard deviations between a score and the mean score is indicated by a z-score.) on which did he score better compared with others in his class? test a test b gregorio’s score 62 70 mean score 80 90 standard deviation 6 10 a. test a: 3; test b: 2; test a c. test a: –2; test b: –3; test a b. test a: –3; test b: –2; test b d. test a: –3; test b: –2; test a

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Mathematics, 23.10.2019 18:10, nyed5789

Ortencia made the following grades on her tests: test #1, 90; test #2, 80; test #3, 95; test #4, 90; test #5, 85. she wants to plot her progress on a coordinate plane where the test number is on the x-axis and the test grade is on the y-axis. what is the range?

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