In nonparametric statistics:
. No assumptions are made concerning the distribution from which the samples are taken.
. The parameters of the distribution do not relate to the parameters of the sample.
. The sample and the distribution must have no parameters in common.

What percentage of the area under the standard normal curve is included within (+/-) 1.5 standard deviations from 0?

A single sampling plan calls for a sample size of 80 with an acceptance number of five and a rejection number of six If the quality of the submitted lots 10 percent defective. then the percent of lots expected to be accepted in the long run is approximately.

What is the key ranking difference between the Deming philosophy and the Malcolm Baldrige award criteria?

An electronics firm was experiencing high rejections in their multiple connector manufacturing departments. "p" charts were introduced as part of a program to reduce defectives. Control limits were based on prior history, using the formula:

P' is the historical value of percent defective and n is the number of pieces inspected each week. After six weeks, the following record was accumulated

1,000 pieces were inspected each week in each department. Which department(s) exhibited a point or points out of control during this period (round off calculations to nearest tenth of a percentage point)?