Suppose that four normal populations have common variance
Chapter 13, Problem 30E(choose chapter or problem)
Suppose that four normal populations have common variance \(\sigma^{2}=25\) and means
\(\mu_{1}=50, \mu_{2}=60, \mu_{3}=50 \text {, and } \mu_{4}=60\) . How many observations should be taken on each population so that the probability of rejecting the hypothesis of equality of means is at least 0.90? Use \(\alpha=0.05\).
Equation Transcription:
Text Transcription:
\sigma^2=25
\mu_1=50, \mu_2=60, \mu_3=50 \text , and \mu_4=60
\alpha=0.05
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