me solve this question Stats and Prob subject grade 11 1. The mean GPA of night students is 2.53 with a standard deviation of 0.69. The mean GPA of day students is 2.18 with a standard deviation of 0.62. You sample 40 night students and 35 day students. What is the mean of the distribution of sample mean differences (night GPA - day GPA)? What is the standard deviation of the distribution of sample mean differences (night GPA - day GPA)? Find the probability that the mean GPA of the sample of night students is greater than the mean GPA of the sample of day students. 2. Suppose that men's mean heartrate is 91.8 beats per minute (bpm), and women's mean heartrate is 88 bpm. Both have a standard deviation of 9 bpm. You randomly poll 60 men and 60 women. What is the mean of the distribution of sample mean differences (men bpm - women bpm)? ______bpm What is the standard deviation of the distribution of sample mean differences (men bpm - women bpm)? ________bpm Find the probability that the mean blood pressure of the sample of men is greater than the mean blood pressure of the sample of women. ______