A population of size 1,000,000 has mean 42 and standard deviation 6. Sixty random samples, each of size 15 are selected. According to the Central Limit Theorem the distribution of the sixty sample means has a mean of approximately:
A population is bimodal with a variance of 5.77. One hundred samples of size 30 are randomly collected and the 100 sample means are calculated. The standard deviation of these sample means is approximately:
A control chart is to be used to display the number of nonconducting diodes. Each point on the chart represents the number of bad diodes in a box of 1000. The appropriate control chart to use is:
A black belt is developing a failure mode and effects analysis (FMEA) for the hamburger preparation station in a fastfood restaurant. The following ratings were developed for the lowheat temperature failure mode.
Severity = 9
Occurrence = 2
Detection = 1
What is the risk priority number (RPN) for this FMEA?
When a team consists of five black belts and eight quality engineers, how many unique meetings could be held consisting of one black belt and two quality engineers?
A Black Belt is going to monitor the number of defects on different size samples. Which of the following control charts would be most appropriate?
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