EX3A3700.f98

# EX3A3700.f98 - MSCI 3700 EXAM 3-A Fall, 1998 Name _ 1. Four...

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MSCI 3700 EXAM 3-A Name ________________________ Fall, 1998 1. Four of the following statements are false and one is true. Which one is true? a. Repeated samples drawn from a population will always yield the same (point) estimate of the population mean. b. If (8.6, 11.4) is a 90% confidence interval for the population mean, then the sample mean must be 10.0. c. The maximum error, E, can be cut in half by taking twice as large a sample. d. The Central Limit Theorem guarantees that the sample mean will be approximately normally distributed for any population and any sample size. e. Using the standard normal (Z) table is appropriate whenever the sample standard deviation is used to construct a confidence interval for the population mean. 2. Four of the following statements are false and one is true. Which one is true? a. The lower control limit of an R chart can be negative. b. If a plotted point falls below the lower control limit, this indicates that the process is stable. c. Deming discouraged the practice of making adjustments to a process if the process has been shown to be in control and contains only random variation. d. While Ed Deming is an advocate of using slogans and numerical quotas, Philip Crosby discouraged the use of such “motivators.” e. Joseph Juran is best known for his 14-point program for managing productivity and quality.

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## This note was uploaded on 03/09/2011 for the course DSCI 2710 taught by Professor Hossain during the Spring '08 term at North Texas.

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EX3A3700.f98 - MSCI 3700 EXAM 3-A Fall, 1998 Name _ 1. Four...

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