The Even More Music worksheet in the data pack represents a random sample of hit songs...
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The "Even More Music" worksheet in the data pack represents a random sample of hit songs (released in the 1980's, 1990's, 2000's, and 2010's) and their length (measured in minutes). a. Using a 5% significance level, conduct an appropriate hypothesis test to determine whether the average length of a song differs by decade. (10 marks) b. Construct and interpret a 95% confidence interval for the difference in the average length of a song released in the 1990's and 2010's. (5 marks) 1980's 1990's 2000's 2010's 3.57 3.34 3.38 4.29 4.25 4.52 4.04 3.11 4.37 4.19 4.10 3.54 3.47 4.05 3.34 3.41 3.41 4.17 4.49 4.05 4.38 2.42 4.02 4.02 3.52 3.52 3.27 3.33 3.12 4.14 3.34 3.15 4.51 3.47 4.41 4.32 3.50 3.57 4.57 5.06 4.30 4.56 3.28 3.40 4.44 3.32 3.51 3.17 3.14 3.52 3.49 3.02 3.32 5.46 4.17 3.39 3.32 4.50 3.16 3.48 3.29 4.10 3.53 3.36 5.19 4.02 5.10 3.31 5.17 4.17 4.37 4.21 4.49 3.34 3.46 3.22 3.35 4.42 3.40 3.48 4.16 3.47 3.01 5.03 4.28 3.23 3.41 4.32 4.20 4.30 4.49 3.51 3.26 2.38 4.10 4.13 6.31 3.28 3.54 3.25 2.54 3.11 5.53 3.16 The "Even More Music" worksheet in the data pack represents a random sample of hit songs (released in the 1980's, 1990's, 2000's, and 2010's) and their length (measured in minutes). a. Using a 5% significance level, conduct an appropriate hypothesis test to determine whether the average length of a song differs by decade. (10 marks) b. Construct and interpret a 95% confidence interval for the difference in the average length of a song released in the 1990's and 2010's. (5 marks) 1980's 1990's 2000's 2010's 3.57 3.34 3.38 4.29 4.25 4.52 4.04 3.11 4.37 4.19 4.10 3.54 3.47 4.05 3.34 3.41 3.41 4.17 4.49 4.05 4.38 2.42 4.02 4.02 3.52 3.52 3.27 3.33 3.12 4.14 3.34 3.15 4.51 3.47 4.41 4.32 3.50 3.57 4.57 5.06 4.30 4.56 3.28 3.40 4.44 3.32 3.51 3.17 3.14 3.52 3.49 3.02 3.32 5.46 4.17 3.39 3.32 4.50 3.16 3.48 3.29 4.10 3.53 3.36 5.19 4.02 5.10 3.31 5.17 4.17 4.37 4.21 4.49 3.34 3.46 3.22 3.35 4.42 3.40 3.48 4.16 3.47 3.01 5.03 4.28 3.23 3.41 4.32 4.20 4.30 4.49 3.51 3.26 2.38 4.10 4.13 6.31 3.28 3.54 3.25 2.54 3.11 5.53 3.16
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Related Book For
Applied Regression Analysis and Other Multivariable Methods
ISBN: 978-1285051086
5th edition
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
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