Mathematics, 16.03.2020 18:57, kactus
A study is conducted to determine if a newly designed text book is more helpful to learning the material than the old edition. The mean score on the final exam for a course using the old edition is 75. Ten randomly selected people who used the new text take the final exam. Their scores are shown in the table below.
Person A B C D E F G H I J
Score 84 94 80 88 77 68 90 74 96 71
Use a 0.01 significance level to test the claim that people do better with the new edition. Assume the standard deviation is 10.4. (a) What kind of test should be used?
A. One-Tailed
B. Two-Tailed
C. It does not matter.
Answers: 2
Mathematics, 22.06.2019 10:00, simrankaurdhatt
Ajar contains a mixture of 10 black balls, 8 red balls, and 2 white balls all the same size. what is the probability of drawing either a red, black or white ball in one draw?
Answers: 1
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