374 Quality management for organizations using Lean Six Sigma techniques
Question 4: A graphical display of the total percentage of results below a certain measure-
ment value is called a
(a) Cumulative distribution function
(b) Histogram
(c) Probability density function
(d) Expected value
Question 5: If the probability of a car starting on a cold morning is .6, and we have two
such cars, what is the probability of at least one of the cars starting on a cold morning?
(a) .36
(b) .60
(c) .84
(d) .81
Question 6: Which table should be used to determine a condence interval on the mean
when the standard deviation is not known and the sample size is 10?
(a) F
(b) X squared
(c) t
(d) z
Question 7: One would normally describe recorded values ...