Monday
December 9, 2013

# Posts by Stuart

Total # Posts: 49

Statistics Help
Six candidates for a new position of vice-president for academic affairs have been selected. Three of the candidates are female. The candidates’ years of experience are as follows. Candidate Experience Female 1 Female 2 Female 3 Male 1 Male 2 Male 3 5 9 11 6 4 8 Suppose o...

Statistics- I think I have the answer
The salaries (in thousands of dollars) for a sample of 13 employees of a firm are: 26.5, 23.5, 29.7, 24.8, 21.1, 24.3, 20.4, 22.7, 27.2, 23.7, 24.1, 24.8, and 28.2. Compute the variance of the salaries. a)2.562 b)6.125 - I Picked this c)9.223 d)7.097

Statistics Help
A medical statistician wanted to examine the relationship between the amount of sunshine (x) and incidence of skin cancer (y). As an experiment, he found the number of skin cancers detected per 100,000 of population and the average daily sunshine in eight counties around the c...

A sample of eight observations of variables x and y is shown below: x 5 3 7 9 2 4 6 8 y 20 23 15 11 27 21 17 14 Find the value of coefficient of correlation, r. a) - 0.991 b)0.872 c)- 0.512 d)0.942

Statistics
Much of the emphasis in TQM is an understanding and reducing variation within the process through which the product is produced, and samples of output are used in reaching inferences about the stability of the process. I choose True. True False

Statistics
Much of the emphasis in TQM is an understanding and reducing variation within the process through which the product is produced, and samples of output are used in reaching inferences about the stability of the process. I choose True. True False

Statistics
When no point lies outside the control limits of a chart, we conclude that: A) variation in the process is caused by assignable causes and there is enough evidence to infer that the process is in statistical control. B) variation in the process is caused by chance and there is...

Statistics
If a point is more than 3 sigmas away from the centerline, or if two out of three consecutive points are on the same side of the centerline and more than 2 sigmas away from it, the process is deemed to be in control. True False

Statisitics
When the purpose of sampling is to detect when a process becomes too variable, the chart of choice will be an R chart. I picked true on this? True False

Statistics
When the purpose of sampling is to detect when a process becomes too variable, the chart of choice will be an R chart. True False I picked True.

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