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Question
When solving for the sample size needed to compute a 95 percent confidence interval for a population proportion p, having a given error bound E, we choose a value of
thatA. makes
as small as reasonably possible.B. makes
as large as reasonably possible.C. makes
as close to .5 as reasonably possible.D. makes
as close to .25 as reasonably possible.E. makes
as large as reasonably possible and makes as close to .25 as reasonably possible.Answer
This answer is hidden. It contains 1 characters.
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Q:
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Q:
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Q:
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Q:
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B. an upward trend on the R chart.
C. a downward trend on the R chart.
D. an increasing gradual funnel pattern on the R chart.
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Q:
If a company is using an chart for a given process with measurement data, it is generally not important or necessary to use an R chart or s chart.
Q:
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Q:
Control charts are used to reduce common causes of variation.
Q:
A sequence of steadily decreasing points on a control chart is called run down.
Q:
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Q:
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An chart is a control chart on which individual process measurements are plotted versus time.
Q:
A manufacturer of windows produces one type that has a plastic coating. The specification limits for the plastic coating are 30 and 70. From time to time the plastic coating can become uneven. Therefore, in order to keep the coating as even as possible, thickness measurements are periodically taken at four different locations on the window. 15 subgroups were observed, each consisting of four thickness measurements, with the following results: mean of the means = = 50.05, and average range = 8.85. Calculate the center line for the R chart.
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