telescope measures the brightness of a sar 17 times. Let these brightness measurements be X1,... X17. Assume brightness measurements are normally distributed with a mean of mu. Astronomers would like to determine whether there is evidence that the mean brightness of the star i something other than 14. Suppose x bar is 13 and s=2.1. For an alpha=0.05 test, what is the p-value? Let Tj be a random variable with a T distribution with j degrees of freedom.   Answer= P(|T16|>1.96) but how do you get there????

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A telescope measures the brightness of a sar 17 times. Let these brightness measurements be X1,... X17. Assume brightness measurements are normally distributed with a mean of mu. Astronomers would like to determine whether there is evidence that the mean brightness of the star i something other than 14.

Suppose x bar is 13 and s=2.1. For an alpha=0.05 test, what is the p-value? Let Tj be a random variable with a T distribution with j degrees of freedom.

 

Answer= P(|T16|>1.96) but how do you get there????

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