=== 2 LI Conditional Formatting v E Insert v Calibri (Body) 12 v A A General E Format as Table v X Delete v en v A v Paste BIUV $ v % 9 Editing Analyze Data Create and Share Adobe PDF Cell Styles v E Format v T20 fx A B D E F G K L. M P R U V X Y Sample i Brand 1 Brand 2 1 99.11 110.65 A major retailer wants to choose between two equally-priced brands of compact fluorescent lamps. To do this, they take a random sample of 100 lamps of each brand. The lifetimes, measured in hours, of the lamps are shown on this sheet. To make the decision, they must first determine whether the underlying population variances are equal. Assume lifetimes follow normal distribution. Use a significance level of 5%. 99.45 92.24 3 98.39 96.63 4 97.07 99.45 99.97 102.55 a) State the null and alternate hypotheses. b) What is the value of the test statistic? c) What is the critical value of the test? d) What is your conclusion? Explain it in the context of the problem. 6 100.06 98.2 6. 109.60 96.53 98.13 104.64 9 107.73 88.03 10 95.58 96.87 2 3 11 96.98 96.02 12 100.47 97.33 38 92.23 101.57 64 102.03 99.62 4 13 101.23 105.14 39 99.87 105.21 65 99 100.96 90 101.17 100.65 5 14 100.39 99.86 40 98.7 92.84 66 101.36 99.05 95.72 91 96.65 96.33 6 15 106.07 93.81 41 97.7 99.89 67 98.75 92 100.27 89.44 16 98.02 92.26 42 102.67 94.24 68 99.03 90.28 93 98.99 103.91 8 17 100.26 103.67 43 100.3 96.43 69 98.75 88.87 94 103.24 103.96 18 102.48 93.61 44 101.76 93.64 70 94.8 110.15 95 100.29 87.99 19 97.88 97.28 45 100.11 97.44 71 101.26 113.99 96 93.25 98.86 20 102.58 102.51 46 103.05 109.93 72 99.08 97.37 97 102.86 96.47 2 3 21 101 106.59 47 100.82 100.20 73 103.6 102.17 98 102.65 101.32 22 97.01 100.90 48 99.94 101.34 74 102.56 95.82 99 102.74 103.46 4 23 103.91 98.67 49 98.89 97.41 75 95.44 104.44 100 98.78 96.70 24 96.23 102.64 50 95.22 109.89 76 98.26 108.21 25 99.84 99.76 51 99.55 107.33 77 95.05 100.28 7 8 9 26 102.49 108.11 52 102.67 95.24 78 100.65 92.43 27 97.8 101.96 53 98.43 91.33 79 99.86 91.92 28 101.1 98.36 54 101.69 102.49 80 105.21 81.47 29 99.51 101.93 55 100.86 106.89 81 101.26 92.58 1 98.86 99.19 30 99.49 112.25 56 103.68 82 103.88 106.49 2 31 101.63 105.35 57 103.97 83 106.71 102.46 3 32 104.85 100.95 58 95.9 93.47 84 100.07 92.72 4 33 99.69 85.00 59 101.85 94.93 85 99.3 101.97 34 97.68 95.50 60 96.05 101.94 86 103.74 96.85 6 7 8 9 35 100.31 111.24 61 103.36 98.81 87 99.6 96.92 36 95.29 109.34 62 102.31 103.66 88 104.24 103.56 37 101 99.67 63 103.15 102.03 89 100.59 87.85 Sheet1 國

=== 2 LI Conditional Formatting v E Insert v Calibri (Body) 12 v A A General E Format as Table v X Delete v en v A v Paste BIUV $ v % 9 Editing Analyze Data Create and Share Adobe PDF Cell Styles v E Format v T20 fx A B D E F G K L. M P R U V X Y Sample i Brand 1 Brand 2 1 99.11 110.65 A major retailer wants to choose between two equally-priced brands of compact fluorescent lamps. To do this, they take a random sample of 100 lamps of each brand. The lifetimes, measured in hours, of the lamps are shown on this sheet. To make the decision, they must first determine whether the underlying population variances are equal. Assume lifetimes follow normal distribution. Use a significance level of 5%. 99.45 92.24 3 98.39 96.63 4 97.07 99.45 99.97 102.55 a) State the null and alternate hypotheses. b) What is the value of the test statistic? c) What is the critical value of the test? d) What is your conclusion? Explain it in the context of the problem. 6 100.06 98.2 6. 109.60 96.53 98.13 104.64 9 107.73 88.03 10 95.58 96.87 2 3 11 96.98 96.02 12 100.47 97.33 38 92.23 101.57 64 102.03 99.62 4 13 101.23 105.14 39 99.87 105.21 65 99 100.96 90 101.17 100.65 5 14 100.39 99.86 40 98.7 92.84 66 101.36 99.05 95.72 91 96.65 96.33 6 15 106.07 93.81 41 97.7 99.89 67 98.75 92 100.27 89.44 16 98.02 92.26 42 102.67 94.24 68 99.03 90.28 93 98.99 103.91 8 17 100.26 103.67 43 100.3 96.43 69 98.75 88.87 94 103.24 103.96 18 102.48 93.61 44 101.76 93.64 70 94.8 110.15 95 100.29 87.99 19 97.88 97.28 45 100.11 97.44 71 101.26 113.99 96 93.25 98.86 20 102.58 102.51 46 103.05 109.93 72 99.08 97.37 97 102.86 96.47 2 3 21 101 106.59 47 100.82 100.20 73 103.6 102.17 98 102.65 101.32 22 97.01 100.90 48 99.94 101.34 74 102.56 95.82 99 102.74 103.46 4 23 103.91 98.67 49 98.89 97.41 75 95.44 104.44 100 98.78 96.70 24 96.23 102.64 50 95.22 109.89 76 98.26 108.21 25 99.84 99.76 51 99.55 107.33 77 95.05 100.28 7 8 9 26 102.49 108.11 52 102.67 95.24 78 100.65 92.43 27 97.8 101.96 53 98.43 91.33 79 99.86 91.92 28 101.1 98.36 54 101.69 102.49 80 105.21 81.47 29 99.51 101.93 55 100.86 106.89 81 101.26 92.58 1 98.86 99.19 30 99.49 112.25 56 103.68 82 103.88 106.49 2 31 101.63 105.35 57 103.97 83 106.71 102.46 3 32 104.85 100.95 58 95.9 93.47 84 100.07 92.72 4 33 99.69 85.00 59 101.85 94.93 85 99.3 101.97 34 97.68 95.50 60 96.05 101.94 86 103.74 96.85 6 7 8 9 35 100.31 111.24 61 103.36 98.81 87 99.6 96.92 36 95.29 109.34 62 102.31 103.66 88 104.24 103.56 37 101 99.67 63 103.15 102.03 89 100.59 87.85 Sheet1 國

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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Transcribed Image Text:AutoSave OFF Book1 ... Page Layout Formulas Review View Acrobat O Tell me 2 Share O Comments Home Insert Draw Data Calibri (Body) - A A General H Conditional Formatting v A Insert v 12 LG Paste E Format as Table v bX Delete v I U v A v A v $ v % 9 .00 C00 20 Analyze Data Create and Share Adobe PDF В Editing E Cell Styles v H Format v T20 fx A В D F G H K M Q. R S U V X Y 1 Sample# Brand 1 Brand 2 2 1 99.11 110.65 A major retailer wants to choose between two equally-priced brands of compact fluorescent lamps. To do this, they take a random sample of 100 lamps of each brand. The lifetimes, measured in hours, of the lamps are shown on this sheet. To make the decision, they must first determine whether the underlying population variances are equal. Assume lifetimes follow normal distribution. Use a significance level of 5%. 3 2 99.45 92.24 4 3 98.39 96.63 4 97.07 99.45 6 5 99.97 102.55 7 6 100.06 a) State the null and alternate hypotheses. b) What is the value of the test statistic? c) What is the critical value of the test? d) What is your conclusion? Explain it in the context of the problem. 6. 109.60 8 7 98.2 96.53 9 8 98.13 104.64 10 9 107.73 88.03 11 10 95.58 96.87 12 11 96.98 96.02 13 12 100.47 97.33 38 92.23 101.57 64 102.03 99.62 14 13 101.23 105.14 39 99.87 105.21 65 99 100.96 90 101.17 100.65 15 14 100.39 99.86 40 98.7 92.84 66 101.36 99.05 91 96.65 96.33 16 15 106.07 93.81 41 97.7 99.89 67 98.75 95.72 92 100.27 89.44 17 16 98.02 92.26 42 102.67 94.24 68 99.03 90.28 93 98.99 103.91 18 17 100.26 103.67 43 100.3 96.43 69 98.75 88.87 94 103.24 103.96 19 18 102.48 93.61 44 101.76 93.64 70 94.8 110.15 95 100.29 87.99 20 19 97.88 97.28 45 100.11 97.44 71 101.26 113.99 96 93.25 98.86 21 20 102.58 102.51 46 103.05 109.93 72 99.08 97.37 97 102.86 96.47 22 21 101 106.59 47 100.82 100.20 73 103,6 102.17 98 102.65 101.32 23 22 97.01 100.90 48 99.94 101.34 74 102,56 95.82 99 102.74 103.46 24 23 103.91 98.67 49 98.89 97.41 75 95.44 104.44 100 98.78 96.70 25 24 96.23 102.64 50 95.22 109.89 76 98.26 108.21 26 25 99.84 99.76 51 99.55 107.33 77 95.05 100.28 27 26 102.49 108.11 52 102.67 95.24 78 100.65 92.43 28 29 27 97.8 101.96 53 98.43 91.33 79 99.86 91.92 28 101.1 98.36 54 101.69 102.49 80 105.21 81.47 30 29 99.51 101.93 55 100.86 106.89 81 101.26 92.58 31 30 99.49 112.25 56 98.86 103.68 82 103.88 106.49 32 31 101.63 105.35 57 99.19 103.97 83 106.71 102.46 33 32 104.85 100.95 58 95.9 93.47 84 100.07 92.72 34 33 99.69 85.00 59 101.85 94.93 85 99.3 101.97 35 34 97.68 95.50 60 96.05 101.94 86 103.74 96.85 36 35 100.31 111.24 61 103.36 98.81 87 99.6 96.92 37 36 95.29 109.34 62 102.31 103.66 88 104.24 103.56 38 37 101 99.67 63 103.15 102.03 89 100.59 87.85 39 Sheet1 Ready 90%

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