15. Students in a large statistics class were randomly divided into two groups of 20 each. Thefirst group took the midterm exam with soft music playing in the background while thesecond group took the exam with no music playing. The average scores of the two groups onthe exam were compared.(a) Describe how random assignment could be done using technology. Be specific.(b) Create an outline showing how the researchers could carry out a completely randomizeddesign for this experiment.(c) Suppose the results of the experiment showed that there was a statistically significantdifference in the average scores of the two groups. Explain what statistically significantmeans.

Given Information: Students in a large statistics class were randomly divided into two groups of 20 each. The first group took the midterm exam with soft music playing in the background while the second group took the exam with no music playing. The average scores of the two groups on the exam were compared.a. The random assignment can be done in EXCEL by using the function =RANDBETWEEN(). The steps are given below: Assign the students number from 1 to 40. Use the function =RANDBETWEEN(1,40) to generate the random numbers. Now create the two groups "Group 1" and "Group 2". Now Assign the first 20 numbers to group 1 and the other 20 to group 2. b. Completely randomized design: In a completely randomized design, each of the experiment units is assigned to a treatment in a completely random manner. The data should be collected from independent random samples from treatment populations to perform the completely randomized design. A method we can use for assigning the subjects to treatment groups is to label each subject and then use a random number table or another way for assigning the subjects to treatment groups by using technology. The outline of a completely randomized design is shown below:c. Consider the null and alternative hypotheses : H0:There is no significant difference in the average scores of the two groups.Ha: There is a significanr different in the avergae scores of the two groups. In this study, the statistically significant means that the average score of the group who took the midterm exam with music is different from the average scores of the group who took the exam without music.