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A sample size 20 yields a sample mean of 23.5 and a sample standard deviation of...

A sample size 20 yields a sample mean of 23.5 and a sample standard deviation of 4.3. Test H0: Mean ≥ 25 at (x = 0.10. HA: Mean < 25. This is a one-tailed test with lower reject region bounded by a negative critical value.

Pvalue 0.932. H0 not rejected. Conclude mean > or equal to 25 plausible

Pvalue 0.135. H0 not rejected. Conclude mean ≥ 25 plausible

Pvalue 0.068. H0 not rejected. Conclude mean< 25

Noe of these answers are correct

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Answer #1

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