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A sample of size 20 yields a sample mean of 23.5 and a sample standard deviation of 4.3. Test H0: Mean 25 at x= .10.

A sample of size 20 yields a sample mean of 23.5 and a sample standard deviation of 4.3.

Test H0: Mean 25 at x= .10. HA: Mean < 25.

A. Pvalue .068. H0 rejected. Conclude mean < 25

B. None

C. Pvalue .135. H0 not rejected. Conclude mean 25 plausible

D. Pvalue .932. H0 not rejected. Conclude mean 25 plausible

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