Size needed for a hypothesis test
To find the sample size needed for a hypothesis test, if Ho: mu=10, Ha: mu<10, sigma is unknown, alpha = 0.01, beta = 0.05 and E = 0.80(sigma), find:
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The sample size needed is:
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When conducting a hypothesis test with chi-square analysis, the null hypothesis is rejected when the differences between the expected and observed frequencies are relatively large.
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