solve in 120 mins I need complete solution will give thumb up.

1. First, read the problem statement and view the data. Eighth-grade students in some Asian countries tend to perform higher in STEM (Science Technology Engineering and Mathematics) classes than their U.S. counterparts. To put this into perspective, please view the data in the following table. STEM Performance Score U.S.A. 41 China 49 South Korea 47 Singapore 48 Note: Scores are fictitious but are drawn from an international benchmark study called TIMSS (Trends in International Mathematics and Science Study). 2. Then, calculate the mean (u) and standard deviation (o) and determine the z-score for each student and its relative location in the normal distribution. Show your work. 3. Discuss the importance of the problem and its application in the real world; show the procedures used to perform your calculations, and provide suggestions of ways to increase U.S. eighth-grade students' STEM scores based on your findings