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Week no. 7 Exercises-Z-test 1.D.G co. has an average gross sales of 37 million per week from their products in all outlets with a standard deviation of 6 million. An area manager found out that the average gross sales from the 32 outlets under his area is 34.8 million per week. Is the mean sales of the products in 32 branches significantly different from the mean sales in all outlets? Use a = 5% a. Perform the 5 steps in testing hypothesis with two-tailed or two-sided tests. b. Perform the 5 steps in testing hypothesis with one tailed or one-sided tests. And N= 45 branches. (All other given are the same) 2. The subject coordinator wants to find out if the webcasting methods of teaching social sciences subjects more effective than the existing standard method of teaching. Two classes of approximately equal intelligence were selected. From one class, the teacher selected students in random as experimental group for webcasting methods, And from the other class, the teacher selected another sample students for existing standard method ofteaching as controlled group. After one trimester, the same tests were given to the students. The mean scores are shown in the following table. Method of teaching E-learning and web casting Existing standard method Mean score x = 82.3 x = 78.5 Standard deviation s = 12 s=9 Class size n₁ = 42 n₂ = 38 Test the hypothesis that the web casting methods of teaching social sciences subjects is more effective than the existing standard method of teaching. Use a = 0.05.

Week no. 7 Exercises-Z-test 1.D.G co. has an average gross sales of 37 million per week from their products in all outlets with a standard deviation of 6 million. An area manager found out that the average gross sales from the 32 outlets under his area is 34.8 million per week. Is the mean sales of the products in 32 branches significantly different from the mean sales in all outlets? Use a = 5% a. Perform the 5 steps in testing hypothesis with two-tailed or two-sided tests. b. Perform the 5 steps in testing hypothesis with one tailed or one-sided tests. And N= 45 branches. (All other given are the same) 2. The subject coordinator wants to find out if the webcasting methods of teaching social sciences subjects more effective than the existing standard method of teaching. Two classes of approximately equal intelligence were selected. From one class, the teacher selected students in random as experimental group for webcasting methods, And from the other class, the teacher selected another sample students for existing standard method ofteaching as controlled group. After one trimester, the same tests were given to the students. The mean scores are shown in the following table. Method of teaching E-learning and web casting Existing standard method Mean score x = 82.3 x = 78.5 Standard deviation s = 12 s=9 Class size n₁ = 42 n₂ = 38 Test the hypothesis that the web casting methods of teaching social sciences subjects is more effective than the existing standard method of teaching. Use a = 0.05.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please answer I really need help. Don’t use excel
Week no. 7 Exercises-Z-test 1.D.G co. has an average gross sales of 37 million per week from their products in all outlets with a standard deviation of 6 million. An area manager found out that the average gross sales from the 32 outlets under his area is 34.8 million per week. Is the mean sales of the products in 32 branches significantly different from the mean sales in all outlets? Use a = 5% a. Perform the 5 steps in testing hypothesis with two-tailed or two-sided tests. b. Perform the 5 steps in testing hypothesis with one tailed or one-sided tests. And N= 45 branches. (All other given are the same) 2. The subject coordinator wants to find out if the webcasting methods of teaching social sciences subjects more effective than the existing standard method of teaching. Two classes of approximately equal intelligence were selected. From one class, the teacher selected students in random as experimental group for webcasting methods, And from the other class, the teacher selected another sample students for existing standard method ofteaching as controlled group. After one trimester, the same tests were given to the students. The mean scores are shown in the following table. Method of teaching E-learning and web casting Existing standard method Mean score x=82.3 x = 78.5 Standard deviation s = 12 S=9 Class size n₁ = 42 n₂ = 38 Test the hypothesis that the web casting methods of teaching social sciences subjects is more effective than the existing standard method of teaching. Use a = 0.05.
Transcribed Image Text:Week no. 7 Exercises-Z-test 1.D.G co. has an average gross sales of 37 million per week from their products in all outlets with a standard deviation of 6 million. An area manager found out that the average gross sales from the 32 outlets under his area is 34.8 million per week. Is the mean sales of the products in 32 branches significantly different from the mean sales in all outlets? Use a = 5% a. Perform the 5 steps in testing hypothesis with two-tailed or two-sided tests. b. Perform the 5 steps in testing hypothesis with one tailed or one-sided tests. And N= 45 branches. (All other given are the same) 2. The subject coordinator wants to find out if the webcasting methods of teaching social sciences subjects more effective than the existing standard method of teaching. Two classes of approximately equal intelligence were selected. From one class, the teacher selected students in random as experimental group for webcasting methods, And from the other class, the teacher selected another sample students for existing standard method ofteaching as controlled group. After one trimester, the same tests were given to the students. The mean scores are shown in the following table. Method of teaching E-learning and web casting Existing standard method Mean score x=82.3 x = 78.5 Standard deviation s = 12 S=9 Class size n₁ = 42 n₂ = 38 Test the hypothesis that the web casting methods of teaching social sciences subjects is more effective than the existing standard method of teaching. Use a = 0.05.
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