A company is producing and marketing new reading activities for elementary school children that it believes will improve reading comprehension scores. A researcher randomly assigns third graders to an eight-week program in which some will use these activities and others will experience traditional teaching methods. At the end of the experiment, both groups take a reading comprehension exam. Do the results attached below suggest that the new activities are better? Test an appropriate hypothesis and state your conclusion. (Assume a significance level of a = 0.05.) E Click the icon to view the exam results. Test the null hypothesis at a = 0.05 using the two-sample t-test. Let the new activities be sample 1 and the control group sample 2. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: H1 - H2 = 0 O B. Ho: H1 -42 = 0 HẠ: H1 - H2 #0 HA: H1 -H2 >0 OC. Ho: H1-H2 #0 HA: H1- H2 =0 O D. Ho: H1 -H2 =0 HA: H1 - H2 <0
A company is producing and marketing new reading activities for elementary school children that it believes will improve reading comprehension scores. A researcher randomly assigns third graders to an eight-week program in which some will use these activities and others will experience traditional teaching methods. At the end of the experiment, both groups take a reading comprehension exam. Do the results attached below suggest that the new activities are better? Test an appropriate hypothesis and state your conclusion. (Assume a significance level of a = 0.05.) E Click the icon to view the exam results. Test the null hypothesis at a = 0.05 using the two-sample t-test. Let the new activities be sample 1 and the control group sample 2. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: H1 - H2 = 0 O B. Ho: H1 -42 = 0 HẠ: H1 - H2 #0 HA: H1 -H2 >0 OC. Ho: H1-H2 #0 HA: H1- H2 =0 O D. Ho: H1 -H2 =0 HA: H1 - H2 <0
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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Question
![Exam Results
New Activities
Control
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43
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58
21
43
44
58
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44
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Done](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9661a8d3-84ad-48b0-a7b1-92b8d6d614a7%2F1949bf8a-f357-4b3c-a478-7e6546dde08f%2Ftxukave_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Exam Results
New Activities
Control
27
55
12
43
32
56
17
43
44
58
21
43
44
58
23
44
44
59
27
48
45
61
33
51
49
62
39
54
51
69
39
56
55
71
42
62
64
86
43
43
Print
Done
![A company is producing and marketing new reading activities for elementary school children that it believes will improve reading comprehension scores. A researcher randomly assigns third graders to an eight-week program in
which some will use these activities and others will experience traditional teaching methods. At the end of the experiment, both groups take a reading comprehension exam. Do the results attached below suggest that the new
activities are better? Test an appropriate hypothesis and state your conclusion. (Assume a significance level of a = 0.05.)
E Click the icon to view the exam results.
Test the null hypothesis at a = 0.05 using the two-sample t-test. Let the new activities be sample 1 and the control group sample 2. Identify the null and alternative hypotheses. Choose the correct answer below.
O A. Ho: H1 - H2 = 0
O B. Ho: H1 -42 = 0
HA: H1 -H2 >0
OC. Ho: H1-H2 #0
HA: H1- H2 =0
O D. Ho: H1 - H2 =0
HA: H1 - H2 <0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9661a8d3-84ad-48b0-a7b1-92b8d6d614a7%2F1949bf8a-f357-4b3c-a478-7e6546dde08f%2F14unwgg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A company is producing and marketing new reading activities for elementary school children that it believes will improve reading comprehension scores. A researcher randomly assigns third graders to an eight-week program in
which some will use these activities and others will experience traditional teaching methods. At the end of the experiment, both groups take a reading comprehension exam. Do the results attached below suggest that the new
activities are better? Test an appropriate hypothesis and state your conclusion. (Assume a significance level of a = 0.05.)
E Click the icon to view the exam results.
Test the null hypothesis at a = 0.05 using the two-sample t-test. Let the new activities be sample 1 and the control group sample 2. Identify the null and alternative hypotheses. Choose the correct answer below.
O A. Ho: H1 - H2 = 0
O B. Ho: H1 -42 = 0
HA: H1 -H2 >0
OC. Ho: H1-H2 #0
HA: H1- H2 =0
O D. Ho: H1 - H2 =0
HA: H1 - H2 <0
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