The college Physical Education Department offered an Advanced First Aid course l
ID: 3234464 • Letter: T
Question
The college Physical Education Department offered an Advanced First Aid course last summer. The scores on the comprehensive final exam were normally distributed, and the 2 scores for some of the students are shown below. (a) Which of these students scored above the mean? (Select all that apply.) Jan Joel Juan Linda Robert Susan (b) Which of these students scored on the mean? (Select all that apply.) Jan Joel Juan Linda Robert Susan (c) Which of these students scored below the mean? (Select all that apply.) Jan Joel Juan Linda Robert Susan (d) If the mean score was mu = 146 with standard deviation sigma = 15, what was the final exam score for each student? (Round your answers to the nearest whole number.) Robert Joel Jan Juan Susan LindaExplanation / Answer
1. Since it is a case of standard normal distribution, the z value corresponding to 0 will be our mean. Thus those who score a positive z will be above mean.so the answer are Robert, Juan and Linda
2. Joel scored on the mean
3. Susan and Jan scored below the mean
4. Robert: 146+1.21*15= 164.15
Joel: 146
Jan: 146-0.63*15=136.55
Juan : 146+1.83*15=173.45
Susan: 146-1.87*15=117.95
Linda: 146+1.62*15=170.3