The HSB data set contains T-scores for several variables reporting standardized test scores for each individual in reading, writing, math, science and civics

The HSB data set contains T-scores for several variables reporting standardized test scores for each individual in reading, writing, math, science and civics. By design, the mean of T- score is 50. If we subtract 50 from each if the T-scores, we get the deviations from the mean for each individual, T - T (let's call this adjusted Tor T*). Test the null hypothesis that the mean of adjusted math score, T*, is zero at the level of 1%. Report the values of sample mean, T *, the standard error of the mean, the sample size, n, the value of test statistic, t, and the p-value. State your decision regarding the null hypothesis and the conclusion about the value of HT that result from this decision. What is the 99% confidence interval for the mean of T , HT. Note that the CI given in SAS output is for HT.. The MEANS Procedure Analysis Variable : ADJMATH Lower 99% Upper 99% Mean Std Dev Std Error N t Value Pr > It| CL for Mean CL for Mean 1.8490000 9.4147364 0.3843550 600 4.81 <.0001 0.8558029 2.8421971