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# If the tire diameter specifications are 50 inches 1

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Unformatted text preview: er 01 - An Introduction to Business Statistics 108. A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to it plant for assembly. In order to keep the assembly operations running efficiently, it is vital that all parts be within specification limits. One important part used in the assembly is the engine camshaft and one important quality characteristic is the case hardness depth. Specifications state that the hardness depth must be between 3.0 mm and 6.0 mm. To investigate the process, the quality control engineer selected 25 daily subgroups of n = 5 and measured the hardness depth. The process yielded a mean of the means = 4.50 and an average range = 1.01. Calculate the control limits for the X-bar chart. A. (4.345 4.655) B. (3.49 5.51) C. (3.917 5.083) D. (2.365 6.635) 109. A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to it plant for assembly. In order to keep the assembly operations running efficiently, it is vital that all parts be within specification limits. One important part used in the assembly is the engine camshaft and one important quality characteristic is the case hardness depth. Specifications state that the hardness depth must be between 3.0 mm and 6.0 mm. To investigate the process, the quality control engineer selected 25 daily subgroups of n = 5 and measured the hardness depth. The process yielded a mean of the means = 4.50 and an average range = 1.01. Calculate the control limits for the R chart. A. (.464 1.556) B. (0 2.349) C. (0 2.114) D. (0 2.135) 1-1689 Chapter 01 - An Introduction to Business Statistics 110. A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to it plant for assembly. In order to keep the assembly operations running efficiently, it is vital that all parts be within specification limits. One important part used in the assembly is the engine camshaft and one important quality characteristic is the case hardness depth. Specifications state that the hardness depth must be between 3.0 mm and 6.0 mm. To investigate the process, the quality control engineer selected 25 daily subgroups of n = 5 and measured the hardness depth. The process yielded a mean of the means = 4.50 and an average range = 1.01. Assuming that the process is in statistical control, calculate the natural tolerance limits for the process. A. (1.47 7.53) B. (3.197 5.803) C. (3.729 5.271) D. (4.066 4.934) 111. A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to it plant for assembly. In order to keep the assembly operations running efficiently, it is vital that all parts be within specification limits. One important part used in the assembly is the engine camshaft and one important quality characteristic is the case hardness depth. Specifications state that the hardness depth must be between 3.0 mm and 6.0 mm. To investigate the process, the quality control engineer selected 25 daily subgroups of n = 5 and measured the hardness depth. The process yielded a mean of the means = 4.50 and an average range = 1.01. Is the process capable of meeting the specifications? A. Yes B. No 1-1690 Chapter 01 - An Introduction to Business Statistics 112. A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to it plant for assembly. In order to keep the assembly operations running efficiently, it is vital that all parts be within specification limits. One important part used in the assembly is the engine camshaft and one important quality characteristic is the case hardness depth. Specifications state that the hardness depth must be between 3.0 mm and 6.0 mm. To investigate the process, the quality control engineer selected 25 daily subgroups of n = 5 and measured the hardness depth. The process yielded a mean of the means = 4.50 and an average range = 1.01. Find the sigma level capability of the process. A. 3.45 B. 0.45 C. 1.24 D. 1.49 113. A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to it plant for assembly. In order to keep the assembly operations running efficiently, it is vital that all parts be within specification limits. One important part used in the assembly is the engine camshaft and one important quality characteristic is the case hardness depth. Specifications state that the hardness depth must be between 3.0 mm and 6.0 mm. To investigate the process, the quality control engineer selected 25 daily subgroups of n = 5 and measured the hardness depth. The process yielded a mean of the means = 4.50 and an average range = 1.01. How many standard deviations of leeway exist between x and the specification closest to x? A. 1.76 B. 1.51 C. 2.55 D. 0.45 114. A bank officer wishes to study how many customers write bad checks. To accomplish this, the officer randomly selects a weekly sample of 100 of checking accounts, and the number of who wrote bad checks was recorded. The...
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## This document was uploaded on 01/20/2014.

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