Question 1

Inspectors plot measurements on a control chart. In recording the data, Inspector #1 transposes the first two digits of a measurement value, entering .511 instead of .151. The chart of the recorded data would likely show

Group of answer choices

Only common cause variation

Special cause variation reflected in a shift of the data

Special cause variation reflected in a cycle with outliers when Inspector #1 is working

Special cause variation reflected in a point outside of naturally defined bounds.

Question 2

With the Central Limit Theorem, as the sample size increases, the sample means will fall further from the true mean of the population.

Group of answer choices

True

False

Question 3

A sample has a mean of21 and standard deviation of 1.2. If samples of size5 are taken the standard error of the means of the samples is

Group of answer choices

0.537

0.240

0.631

0.750

Question 4

A process has a mean of 108 and standard deviation of 3.5. Samples of size 10 have been taken for several months. To determine the proportion of the population that would have a value less than 100, you must

Group of answer choices

A. Recognize whether the problem is asking about sample means or individual values.

B. Calculate the standard error of the means where n=10.

C. Calculate Z=(100-108)/3.5

D. Find the sample probability

A and B

A and C

Question 5

A population has a mean of 1020and standard deviation of 8. Samples of size 10are taken from the population. What percent of the sample averages will be less than 1015?

Group of answer choices

6.1%

4.8%

27%

2.4%