# Question

An article in environment International (Vol. 18, No.4, 1992) describes an experiment in which the amount of radon released in showers was investigated. Radon-enriched water was used in the experiment, and six different orifice diameters were tested in shower heads. The data from the experiment are shown in Table 4E.9.

a. Does the size of orifice affect the mean percentage of radon released? Use the analysis of variance.

b. Analyze the results from this experiment.

a. Does the size of orifice affect the mean percentage of radon released? Use the analysis of variance.

b. Analyze the results from this experiment.

## Answer to relevant Questions

The time to complete an order (in seconds) is as follows: 96, 102, 104, 108, 126, 128, 150, and 156. a. Calculate the sample average. b. Calculate the sample standard deviation. What are chance and assignable causes of variability? What part do they play in the operation and interpretation of a Shewhart control chart? Apply the Western Electric rules to the control chart in Exercise 5.14. Are any of the criteria for declaring the process out of control satisfied? b. Estimate the mean and standard deviation of the process. What are the ± 2 standard deviation limits for the individual data? c. If the specification limits are 41 ± 5, do you think the process is capable of producing ...A machine is used to fill cans with an energy drink. A single sample can is selected every hour and the weight of the can is obtained. Since the filling process is automated, it has very stable variability, and long-term ...Post your question

0