The dataframe for the years 1996-1998 is called assigned_years_league_df The variable 'elo_n' represents the relative skill of teams. Start by calculating the mean and the standard deviation of relative skill (ELO) in years 1996-1998. Calculate n that represents the sample size. Calculate the standard error which is equal to the standard deviation of Relative Skill (ELO) divided by the square root of the sample size n. Assuming that the population standard deviation is known, use Python methods for the Normal distribution to calculate the confidence interval. Your statistics should be rounded to two decimal places.

This assignment continues work on the online booking facility introduced at the end of chapter- 10. the work will be continued in the assignments for chapters 14 and 15 (a) assume that you will produce your online booking facility using an agile approach. i. suggest the kind of user research you would like to conduct for your product before iteration cycles begin. ii prioritize the requirements for your product according to business value, i. e which requirements are likely to provide the greatest business benefit, and sketch out the ux design work you would expect to undertake during the first four iteration cycles, i. e. cycle 0, and cycles 1 to 3. (b) using one of the mockup tools introduced above, generate a mockup of your product's landing page, as developed in the assignment for chapter-11 (c) using one of the patterns websites listed previously, identify suitable interaction patterns for elements of your product, and develop a software-based prototype that incorporates all the feedback and the results of the user experience mapping achieved at the end of chapter-11. if you do not have experience in using any of these, create a few html web pages to represent the basic structure of your website