please someone help me find the solutions for these Questions ASAP, Thank you.

Questions 20 to 24 (3+2+ 5+ 6 + 4 = 30 marks) Question 20 (3 points) The following graph represents the profit ($'000) of a small independently owned shoe shop in Geelong. Realised Profit ($'000) each quarter from Q1 2015 to Q3 2020 y = 8.1848x + 203.17 R?=0.8904 450 400 350 300 250 200 150 100 50 0 from Q1 2015 to Q3 2020 450 400 y= 8.1848x + 203.17 R = 0.8904 350 300 250 200 150 100 50 O 2015 03 2015 2016 Q3 2016 01 2017 Q3 2017 01 2018 3 2018 01 2019 03 2019 1 2020 O3 2020 Identify and describe the various time-series elements visible in the graph above. Question 21 (2 points) What type of smoothing do you suggest for this time series? Explain the reason for your suggestion Question 22 (5 points) Considering the provided linear trend on the graph, estimate the profit for the independently owned Geelong shoe shop for Q1 2021 and interpret your finding. Question 23 (6 points) Calculate a 95% prediction interval for the estimated profit in Q1 of 2021 and interpret it. Consider the average variation of each individual profit around the linear regression line is 20.36 ($000). Question 24 (4 points) How might the predication interval you estimated in Question 23 differ from a confidence interval estimate for profit at this same time (Q1 of 2021)? No calculations are required