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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1. A study compared the number of tree species in unlogged forest plots to similar plots logged 8 years earlier. Independent random samples of both logged and unlogged plots were analyzed and the number of tree species was recorded. Tables 1 and 2 present the Shapiro-Wilk normality test for both types of forest plots and the Independent Samples t-test results. Use the information presented in these tables to answer the questions. Table 1: Tests of Normality Tests of Normality Kolmogorov-Smirnov Shapiro-Wilk Forest Plot Statistic df Sig. Statistic df Sig. Tree_Species Logged .181 12 .200 .936 12 .444 Unlogged .110 14 .200 .945 14 .480 *. This is a lower bound of the true significance. a. Lilliefors Significance Correction Table 2: Independent Samples Test Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Difference Mean Std. Error F Sig. t df Sig. (2-tailed) Difference Difference Lower Upper Equal variances…