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5.8 An engineer suspects that the surface finish of a metal part is influenced by the feed rate and the depth of cut. He selects three feed rates and four depths of cut. He then conducts a factorial experiment and obtains the following data: Depth of Cut (in) 0.25 Feed Rate (in/min) 0.15 0.18 0.20 74 79 82 99 0.20 64 68 88 104 60 73 92 96 92 98 99 104 0.25 86 104 108 110 88 88 95 99 99 104 108 114 0.30 98 99 110 111 102 95 99 107 (a) Analyze the data and draw conclusions. Use a = 0.05. (c) Obtain point estimates of the mean surface finish at each feed rate. (d) Find the P-values for the tests in part (a).

5.8 An engineer suspects that the surface finish of a metal part is influenced by the feed rate and the depth of cut. He selects three feed rates and four depths of cut. He then conducts a factorial experiment and obtains the following data: Depth of Cut (in) 0.25 Feed Rate (in/min) 0.15 0.18 0.20 74 79 82 99 0.20 64 68 88 104 60 73 92 96 92 98 99 104 0.25 86 104 108 110 88 88 95 99 99 104 108 114 0.30 98 99 110 111 102 95 99 107 (a) Analyze the data and draw conclusions. Use a = 0.05. (c) Obtain point estimates of the mean surface finish at each feed rate. (d) Find the P-values for the tests in part (a).

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 92E
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5.8 An engineer suspects that the surface finish of a metal part is influenced by the feed rate and the depth of cut. He selects three feed rates and four depths of cut. He then conducts a factorial experiment and obtains the following data: Depth of Cut (in) Feed Rate (in/min) 0.15 0.18 0.20 0.25 74 79 82 99 0.20 64 68 88 104 60 73 92 96 92 98 99 104 0.25 86 104 108 110 88 88 95 99 99 104 108 114 0.30 98 99 110 111 102 95 99 107 (a) Analyze the data and draw conclusions. Use a = 0.05. (c) Obtain point estimates of the mean surface finish at each feed rate. (d) Find the P-values for the tests in part (a).
Transcribed Image Text:5.8 An engineer suspects that the surface finish of a metal part is influenced by the feed rate and the depth of cut. He selects three feed rates and four depths of cut. He then conducts a factorial experiment and obtains the following data: Depth of Cut (in) Feed Rate (in/min) 0.15 0.18 0.20 0.25 74 79 82 99 0.20 64 68 88 104 60 73 92 96 92 98 99 104 0.25 86 104 108 110 88 88 95 99 99 104 108 114 0.30 98 99 110 111 102 95 99 107 (a) Analyze the data and draw conclusions. Use a = 0.05. (c) Obtain point estimates of the mean surface finish at each feed rate. (d) Find the P-values for the tests in part (a).
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