PLZ HELP NEED ANSWER NOW. school administrator believes that the mean class GPAs for a given course are higher than the preferred mean of 2.75 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.
2.59
2.43
2.96
2.80
2.94
3.07
2.65
2.79
2.61
2.90
3.14
2.78
2.50
2.78
2.52
2.60
2.86
2.88
2.78
3.09
2.82
2.72
2.98
2.68
2.87
2.86
2.78
2.73
2.62
2.77
2.90
3.02
2.73
2.87
2.63
2.98
2.52
2.81
2.91
2.71
3.07
2.89
2.93
2.64
2.94
2.81
2.85
2.89
2.79
2.86