In a hypothesis test with the null and alternative
hypotheses H0:μ≥80H0:μ≥80 and H1:μ<80H1:μ<80,
a random sample of 95 elements selected from the
population produced a mean of 75.9. Assume
that σ=σ= 25.0, and that the test is to be made at
the 3% significance level.
What is the value of the test statistic, z,
rounded to three decimal places?
In a hypothesis test with the null and alternative hypotheses H0:μ≥80H0:μ≥80 and H1:μ<80H1:μ<80, a random sample of 95 e
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In a hypothesis test with the null and alternative hypotheses H0:μ≥80H0:μ≥80 and H1:μ<80H1:μ<80, a random sample of 95 e
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