Use Sheet 1 of the Excel file to answer the following questions. A school administrator believes that the mean class GPAs for a given course are higher than the preferred mean of 2.750 at a significance level of 0.05 , and checks a randomly chosen sample of 50 classes. Create a histogram, and calculate x, the t-statistic, and the p-value. From the histogram, can normality be assumed? x= t= Round all answers to 3 decimal places. p= Since the p-value is than the significance level 0.05 , the null hypothesis evidence exists that the mean GPA is greater than 2.750 . \begin{tabular}{|l} \hline 3.09 \\ \hline 2.73 \\ \hline 2.58 \\ \hline 2.68 \\ \hline 2.84 \\ \hline 2.68 \\ \hline 2.64 \\ \hline 2.62 \\ \hline 2.35 \\ \hline 2.72 \\ \hline 2.63 \\ \hline 2.77 \\ \hline 2.72 \\ \hline 3.03 \\ \hline 2.71 \\ \hline 2.96 \\ \hline 2.74 \\ \hline 3.01 \\ \hline 2.88 \\ \hline 2.68 \\ \hline 2.83 \\ \hline 3.02 \\ \hline 2.83 \\ \hline 2.71 \\ \hline 2.67 \\ \hline 2.79 \\ \hline 2.65 \\ \hline 2.56 \\ \hline 2.78 \\ \hline 2.89 \\ \hline 2.40 \\ \hline 2.38 \\ \hline 2.41 \\ \hline 2.83 \\ \hline 2.86 \\ \hline 3.01 \\ \hline 2.80 \\ \hline \end{tabular} \begin{tabular}{|r|} \hline 2.84 \\ \hline 2.95 \\ \hline 2.75 \\ \hline 2.93 \\ \hline 2.48 \\ \hline 2.34 \\ \hline 2.97 \\ \hline 2.85 \\ \hline 2.74 \\ \hline 2.84 \\ \hline 3.10 \\ \hline 2.62 \\ \hline 2.77 \\ \hline \end{tabular} Use Sheet 1 of the Excel file to answer the following questions. A school administrator believes that the mean class GPAs for a given course are higher than the preferred mean of 2.750 at a significance level of 0.05 , and checks a randomly chosen sample of 50 classes. Create a histogram, and calculate x, the t-statistic, and the p-value. From the histogram, can normality be assumed? x= t= Round all answers to 3 decimal places. p= Since the p-value is than the significance level 0.05 , the null hypothesis evidence exists that the mean GPA is greater than 2.750 . \begin{tabular}{|l} \hline 3.09 \\ \hline 2.73 \\ \hline 2.58 \\ \hline 2.68 \\ \hline 2.84 \\ \hline 2.68 \\ \hline 2.64 \\ \hline 2.62 \\ \hline 2.35 \\ \hline 2.72 \\ \hline 2.63 \\ \hline 2.77 \\ \hline 2.72 \\ \hline 3.03 \\ \hline 2.71 \\ \hline 2.96 \\ \hline 2.74 \\ \hline 3.01 \\ \hline 2.88 \\ \hline 2.68 \\ \hline 2.83 \\ \hline 3.02 \\ \hline 2.83 \\ \hline 2.71 \\ \hline 2.67 \\ \hline 2.79 \\ \hline 2.65 \\ \hline 2.56 \\ \hline 2.78 \\ \hline 2.89 \\ \hline 2.40 \\ \hline 2.38 \\ \hline 2.41 \\ \hline 2.83 \\ \hline 2.86 \\ \hline 3.01 \\ \hline 2.80 \\ \hline \end{tabular} \begin{tabular}{|r|} \hline 2.84 \\ \hline 2.95 \\ \hline 2.75 \\ \hline 2.93 \\ \hline 2.48 \\ \hline 2.34 \\ \hline 2.97 \\ \hline 2.85 \\ \hline 2.74 \\ \hline 2.84 \\ \hline 3.10 \\ \hline 2.62 \\ \hline 2.77 \\ \hline \end{tabular}