The following MINITAB output presents a power calculation. a. ? What is the power requested by the
Question:
The following MINITAB output presents a power calculation.
a.?What is the power requested by the experimenter?
b. To guarantee a power of 0.864138, how many observations must be taken for all treatments combined?
c. What is the difference between treatment means that can be detected with a power of at least 0.864138?
d. Is the power to detect a maximum difference of 250 greater than 0.864138 or less than 0.864138? Explain.
Transcribed Image Text:
Alpha 0.05 Assumed standard deviation = 142.6 Number of Levels = 4 SS Means 20000 Sample Size Target Power 0.85 Maximum Difference 200 Actual Power 14 0.864138 The sample size is for each level.
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