2. Use the sign test on the data given below to determine whether there is a statistical increase in the values produced by treatment B over those by treatment A at 5% level. 17.3 14.1 9.8 Treatment 12.5 78 12.2 143 11.7 138 16 24.8 11.2 128 14 12.1 A Treatment 15.7 13.6 10.2 12.3 7.4 11.1 13.4 12 13.1 15.7 14.4 11.5 12 13.6 11.4 B

2. Use the sign test on the data given below to determine whether there is a statistical increase in the values produced by treatment B over those by treatment A at 5% level. 17.3 14.1 9.8 Treatment 12.5 78 12.2 143 11.7 138 16 24.8 11.2 128 14 12.1 A Treatment 15.7 13.6 10.2 12.3 7.4 11.1 13.4 12 13.1 15.7 14.4 11.5 12 13.6 11.4 B

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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3.10 The survey on student attitude toward e-books described in Exercise 3.5 was conducted in 2011. A similar survey was also conducted in 2012 (The Chronicle of Higher Education, August 23, 2013). Data from 1588 students who participated in the 2012 survey are summarized in the accompanying table. Response Percentage in This Category Strongly disagree 19.1 Disagree 27.5 Agree 26.3 Strongly agree 16.0 Don't know 11.1 a. Use these data and the data from Exercise 3.5 to construct a comparative bar chart that shows the distribution of responses for the two years. (Hint: See Example 3.1.) b. Based on your graph from part (a), do you think there was much of a change in attitude toward e-books from 2011 to 2012?
At the .05 significance level, does the data below show significant correlation? X y 5 22.1 6 20.35 7 17.2 8 16.85 9 8.2 10 17.45 17 11 Yes, significant correlation O No
2. Use the sign test on the data given below to determine whether there is a statistical increase in the values produced by treatment A over those by treatment B at 10% level. Treatment 11.2 14.1 9.8 12.5 7.8 12.2 14.3 11.7 13.8 16 24.8 17.3 12.8 14 12.1 A Treatment 11.5 13.6 10.2 12.3 7.4 11.1 13.4 12 13.1 15.7 14.4 15.7 12 13.6 11.4 B
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Statistics Question
Please calculate the mean Statement 1 % 2 % 3 % 4 % 5 % N M Travelling involves too much risk 12.1 44.4 24.1 13.6 5.8 257 I am motivated to travel and tour within Malaysia 0 3.9 7.8 32.3 56 257 I am motivated to travel and tour abroad 0 2.3 10.5 29.6 57.6 257 I am more inclined to visit less crowded outdoor attractions 0.4 36.2 9.3 35 19.1 257 I will travel after getting feedback from friends who are currently on a tour 0 25.3 23.3 35 16.3 257
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The following histogram summarizes height data, in cm, for a sample of male participants in the 2015-2016 National Health and Nutrition Examination Survey. 40 35 00 30 25 25 Frequency 20 20 15 10 5 NHANES Male Heights 0 87.3 97.5 107.7 117.9 128.1 138.3 148.5 158.7 168.9 179.1 189.3 Height (cm) XLSTAT Trial What relationship do you expect between the mean and median male height? The mean and median are approximately equal. The mean is greater then the median. The mean is less than the median.