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A sample of size 20 vields a sample mean of 23.5 and a sample standard deviation of 4.3. Test H0: Mean 2 25 at o:

A sample of size 20 vields a sample mean of 23.5 and a sample standard deviation of 4.3. Test H0: Mean 2 25 at o: = 0.10. HA: Mean s 25. This is a one-tailed test with lower reject region bounded bv a negative critical value. 0 None of the other answers are correct. 0 Pvalue 0.135. H0 not rejected. Conclude mean a 25 plausible O Pvalue 0.932. H0 not rejected. Conclude mean a 25 plausible O Pvalue 0.068. H0 rejected. Conclude mean t 25

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