Mathematics, 10.03.2020 06:10 veryrarecobain
An experiment was conducted to compare the use of iPads versus regular textbooks in teaching algebra to two classes of middle school students.† To remove teacher-to-teacher variation, the same teacher taught both classes, and all teaching materials were provided by the same author and publisher. Suppose that after 1 month, 10 students were selected from each class and their scores on an algebra advancement test recorded. The summarized data follow.
iPad Textbook
Mean 86.8 79.5
Standard Deviation 8.97 10.8
Sample Size 10 10
Required:
a. use the summary data to test for a significant difference in advancement scores for the two groups using α= 0.05.
b. Find a 95% confidence interval for the difference in mean scores for the two groups.
c. In light of parts (a) and (b), what can we say about using iPads versus traditional textbooks in teaching algebra at the middle school level?
Answers: 3
Mathematics, 21.06.2019 19:30, anniekwilbourne
Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.
Answers: 2
Mathematics, 22.06.2019 01:10, zacharynugent
Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2
Answers: 2
An experiment was conducted to compare the use of iPads versus regular textbooks in teaching algebra...
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