Consider the continuous random variable x, which has a uniform distribution over the interval from 20 to 28 . The probability that x will take on a value of at least 26 is _____
a. 0
b. .125
c. .250
d. 1
c
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Which of the following assumptions does not belong in a list of characteristics of lean production?
A) labor is more costly than machines B) set up time can be reduced C) minimize inventory to cut costs and wastage D) maximize backwards integration E) inspection to prevent defective production
All regions of the world experienced an absolute increase in the dollar volume of their services exports since 1980, although the U.S. proportion has risen by approximately one-third since that time.
Answer the following statement true (T) or false (F)
If a project is expected to be completed in 68 days with a project variance of 21 days, what is the probability that the project will be completed within 50 days?
a. less than 1% b. between 5% and 10% c. between 15% and 30% d. over 35%
All of the following are true about the standard error of the mean except?
A. ?it is larger than the standard deviation of the population. B. ?it decreases as the sample size increases. C. ?its value is influenced by the standard deviation of the population. D. ?it measures the variability in sample means.