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It is claimed that a new treatment for prolonging the lives of cancer patients is more...

It is claimed that a new treatment for prolonging the lives of cancer patients is more effective than the standard one. Records of earlier
research show the mean survival period to have been 4.3 years with the standard treatment. The new teatment is administered to a sample
of 20 patients, and the durations of their survival are recorded. The sample mean is 4.6 years, and the standard deviation is 1.2 years.
Is the claimed effectiveness of the new method supported at the 0.01 level of significance?

What is the Number of tails?

What is the degrees of freedom?

What is the critical freedom?
What is the t value?
Should we retain ho?

What is the p value?

Math   Statistics-And-Probability   
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