Jump to level 1 Use Sheet 2 of the Excel file to answer the following questions....

Transcribed Image Text:

Jump to level 1 Use Sheet 2 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 2.75 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. From the histogram, can normality be assumed? Yes x = 2.75 t = p = Since the p-value is Pick than the significance level 0.05, the null hypothesis Pick Pick evidence exists that the mean GPA is greater than 2.75. Check 1 Try again 2 3 Jump to level 1 Use Sheet 2 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 2.75 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. From the histogram, can normality be assumed? Yes x = 2.75 t = p = Since the p-value is Pick than the significance level 0.05, the null hypothesis Pick Pick evidence exists that the mean GPA is greater than 2.75. Check 1 Try again 2 3