subject
Mathematics, 28.06.2020 19:01 theyycraveenaee

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 Test Score 70 80 96 87 68 74 90 75 94 84 Use a 0.05 significance level to test the claim that people do better with the new edition. Assume the standard deviation is 10.7. (Note: You may wish to use statistical software.)

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 17:00
The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is
Answers: 2
question
Mathematics, 21.06.2019 19:00
The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?
Answers: 1
question
Mathematics, 21.06.2019 19:30
If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).
Answers: 1
question
Mathematics, 21.06.2019 19:40
The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол
Answers: 1
You know the right answer?
A study is conducted to determine if a newly designed text book is more helpful to learning the mate...
Questions