I need solution just for part B, and question 2, please. Part A: Roll a single die 50 times and record the results. Now use that data set to compute the mean, median, mode, variance, and standard deviation of the set. Part B: Then Calculate the 95% confidence interval for the mean. Question 2- What is the relationship between confidence intervals and levels of significance?

The AssignmentBased on the research question you created, complete the following tasks:Fit a multiple regression model, testing whether a mediating variable partly or completely mediates the effect of an initial causal variable on an outcome variable. Think about whether or not the model will meet assumptions.Fit the model, testing for mediation between two key variables.Analyze the output, determining whether mediation was significant and how to interpret that result.Reflect on possible implications of social change.Write a 1- to 2-paragraph analysis in APA format that includes your data output and addresses each of the tasks listed above. See pages 683 and 684 in your Warner textbook for an excellent APA-compliant write-up of a mediation analysis.