Mathematics, 24.04.2020 17:32 tony001
An experiment to determine the most effective way to teach safety principles applied four different teaching methods. Some employees were given programmed instruction booklets and worked through the course at their own pace. Other employees attended lectures. A third group watched a television presentation, and a fourth group was divided into small discussion groups. A high of 10 was possible. A sample of five tests was selected from each group. The test grade results were:
Sample Number - Programmed Instruction - Lecture - TV - Group Discussion
1 - 6 - 8 - 7 - 8
2 - 7 - 5 - 9 - 5
3 - 6 - 8 - 6 - 6
4 - 5 - 6 - 8 - 6
5 - 6 - 8 - 5 - 5
At the 0.19 level, what is the critical value?
a. 1.79
b. 0.60
c. 0.89
d. 1.04
Answers: 2
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Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.
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Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?
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Mathematics, 22.06.2019 04:30
How does percent markup and percent discount relate to percent of change?
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