The predicted values from this regression equation are NOT meaningful.

Calculate the standardized test statistic. 

State the claim mathematically. Is the claim the null or alternative hypothesis?

The score, 78, is the point estimate for the population mean test score, μ{“version”:”1.1″,”math”:”\mu “}

The claim, mathematically, is p=0.50{“version”:”1.1″,”math”:”p=0.50″}

We would use the Student t distribution to construct our confidence interval. 

Determine the test of significance (t-test or z-test) and justify your choice.

The claim, written mathematically, is μ>13.5{“version”:”1.1″,”math”:”\mu>13.5″}

State the standardized test statistic. Justify by formula or stating the input to your calculator.

The claim is the alternative hypothesis.