Problem 9 and 10: A simple random sample of 10 students is selected from Antelope Valley College. For the 10 students, the number o days cach was absent during the last semester was to be {3,7, 2, 1,0, 2, 4, 2, 6, and 2 }. Note that the mean x= 2.9 and the sample standard deviation is s = 2.18. 9. Calculate the 95% confidence interval for x where z 1.960. Report the final answer in the format of (a,b). CI =x+ Circle your answer below. (a) Cl = (2.21, 3.59) (b) CI (-10.61, 16.41) (c) CI (0.94, 4.86) (d) CI = (1.55,4.25) (e) CI = (-1.37, 7.17) 10. What is the margin of error? Circle your answer below. (a) Margin of error = t1.96 (b) Margin of error =t1.35 (c) Margin of error 10.69 (d) Margin of error 113.51 (e) Margin of error 14.27

Problem 9 and 10: A simple random sample of 10 students is selected from Antelope Valley College. For the 10 students, the number o days cach was absent during the last semester was to be {3,7, 2, 1,0, 2, 4, 2, 6, and 2 }. Note that the mean x= 2.9 and the sample standard deviation is s = 2.18. 9. Calculate the 95% confidence interval for x where z 1.960. Report the final answer in the format of (a,b). CI =x+ Circle your answer below. (a) Cl = (2.21, 3.59) (b) CI (-10.61, 16.41) (c) CI (0.94, 4.86) (d) CI = (1.55,4.25) (e) CI = (-1.37, 7.17) 10. What is the margin of error? Circle your answer below. (a) Margin of error = t1.96 (b) Margin of error =t1.35 (c) Margin of error 10.69 (d) Margin of error 113.51 (e) Margin of error 14.27

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Description: Problem 9 and 10:A simple random sample of 10 students is selected from Antelope Valley College. For the 10 students, the number ofdays cach was absent during the last semester was to be{3,7, 2, 1, 0, 2, 4, 2, 6, and 2 }.Note that the mean x= 2.9 an

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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In the year 2033, Sarai Patterson is a leading traveling nurse. Sarai is interested in reducing the mean recovery time for patients after experiencing a serious injury (assume recovery times are normally distributed). Suppose the mean recovery time is presently 8.6 months. Sarai takes a random sample of 46 patients that have experienced serious injury to participate in a new treatment program and finds the sample mean is 8.1 months and a sample standard deviation of 1.2 months. Using α = 0.05, answer the following questions. a) What is the setup for your null and alternative hypothesis? b) What is the value of the test statistic? c) What is/are the critical value(s)?
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In the year 2033, katy perry is a leading traveling nurse. Katy is interested in reducing the mean recovery time for patients after experiencing a serious injury (assume recovery times are normally distributed). Suppose the mean recovery time is presently 8.6 months. Katy takes a random sample of 46 patients that have experienced serious injury to participate in a new treatment program and finds the sample mean is 8.1 months and a sample standard deviation of 1.2 months. Using α = 0.05, answer the following questions. g) What is the interpretation (not your conclusions) of the p value in the context of the problem you found in part e? h) What are your conclusions in the context of the problem? Relate your conclusions to the test statistic and critical value, confidence interval and p value.
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