Ismch16 - 72 Instructor’s Solutions Manual for Statistics for Business& Economics 5 th Edition Chapter 16 Introduction to Quality 16-1 thru 5

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 72 Instructor’s Solutions Manual for Statistics for Business & Economics, 5 th Edition Chapter 16: Introduction to Quality 16-1 thru 5. Various answers. 16.6 a. 4 ˆ / 5.42/.959 5.6517 s c σ = = = b. CL = X = 192.6 LCL = 3 3 4 3 , X A s where A c n- = = 192.6 – 1.18(5.42) = 186.2044 UCL = 3 3 4 3 , X A s where A c n + = = 192.6 + 1.18(5.42) = 198.9956 c. CL = 5.42 LCL = .12(5.42) = .6504 UCL = 1.88(5.42) = 10.1896 16.7 a. ˆ 3.67 /.952 3.855 σ = = b. CL = 93.2 LCL = 93.2 – 1.29(3.67) = 88.4657 UCL = 93.2 + 1.29(3.67) = 97.9343 c. CL = 3.67 LCL = .03(3.67) = .1101 UCL = 1.97(3.67) = 7.2299 16.8 a. ˆ 1.23/.965 1.2746 σ = = b. CL = 19.86 LCL = 19.86 – 1.1(1.23) = 18.507 UCL = 19.86 + 1.1(1.23) = 21.213 c. CL = 1.23 LCL = .18(1.23) = .2214 UCL = 1.82(1.23) = 2.2386 16.9 a. ˆ 1.75/.940 1.8617 σ = = b. CL = 230.5 LCL = 230.5 – 1.43(1.8617) = 227.8378 UCL = 230.5 + 1.43(1.8617) = 233.1622 c. CL = 1.75 LCL = 0(1.75) = 0.0 UCL = 2.09(1.75) = 3.6575 16.10 a. 4999.4/30 149.98 x = = b. 179.67 /30 5.989 s = = c. ˆ 5.989/.965 σ = = 6.2062 d. CL = 149.98 LCL = 149.98 – 1.1(5.989) = 143.3921 UCL = 149.98 + 1.1(5.989) = 156.5679 73 Instructor’s Solutions Manual for Statistics for Business & Economics, 5 th Edition e. The X chart shows a process where the level is under statistical control 30 20 10 160 150 140 Sample Number Sample Mean X-bar Chart for Exercise 16-10 Mean=149.98 UCL=156.57 LCL=143.39 f. CL = 5.989 LCL = .18(5.989) = 1.078 UCL = 1.82(5.989) = 10.9 g. S-chart 10 20 30 2 4 6 8 10 12 Index Sample StDev S Chart for 16-10 S BAR=5.989 LCL=1.078 UCL=10.9 Chapter 16: Introduction to Quality 74 16-11 a. 396.8/ 20 19.84 x = = b. 39.8/ 20 1.99 s = = c. ˆ 1.99/.952 σ = = 2.0903 d. CL = 19.84 LCL = 19.84 – 1.29(1.99) = 17.2729 UCL = 19.84 + 1.29(1.99) = 22.4071 e. 20 10 22 21 20 19 18 Sample Number Sample Mean X-bar Chart for XBar_16- Mean=19.84 UCL=21.90 LCL=17.78 f. CL = 1.99, LCL = .03(199) = .0597, UCL = 1.97(1.99) = 3.9203 g. S Chart 75 Instructor’s Solutions Manual for Statistics for Business & Economics, 5 th Edition 20 15 10 5 4 3 2 1 Index Sample StDev S Chart for 16-11 UCL=3.9203 S BAR=1.99 LCL=.0597 16.12 a. 192.6 ± 3(5.6517): (175.6449, 209.5551) These values lie within the tolerance limits b. 215 170 1.327 6(5.6517) p C- = = The process is not capable since 1.33 p C < c. 215 192.6 1.321 3(5.6517) pk C- = = The process is not capable since 1.33 pk C < 16.13 a. 93.2 ± 3(3.855): (81.635, 104.765) These limits are beyond the tolerances set by management b. 100 85 .648 6(3.855) p C- = = The process is not capable since 1.33 p C < c. 100 93.2 .588 3(3.855) pk C- = = The process is not capable since 1.33 pk C < 16.14 a. 19.86 ± 3(1.2746): (16.0362, 23.6838) These limits are beyond the tolerances set by management b....
View Full Document

This note was uploaded on 03/25/2009 for the course FIN FIN534 taught by Professor Stevenjordan during the Spring '09 term at Korea Advanced Institute of Science and Technology.

Page1 / 24

Ismch16 - 72 Instructor’s Solutions Manual for Statistics for Business& Economics 5 th Edition Chapter 16 Introduction to Quality 16-1 thru 5

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online