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Select one of the areas of investigation given in class. Alternatively, choose one of your own. SELECT ONE of the following: Select either 1. , 2. , 3., 4. Or 5 Or a dataset of your own choice 1. The Average Age of ALL People in Different Countries. a) Use the following link: https://en.wikipedia.org/wiki/List_of_countries_by_median_age b) See also the attached “Dataset List of countries by median age” c) Copy from the excel file the column “Median years” and past it into the following online Statistical tool to calculate the mean and standard deviation of the median ages of all countries; http://www.calculatorsoup.com/calculators/statistics/descriptivestatistics.php Your result will look like this (with different numbers):..you will need the mean and standard deviation to complete the test statistic (see later) d) Select a country with a median age either much HIGHER or Much Lower than the average. NOTE: in the most important part of the assignment you will need to research WHY, this countries, median age is significantly different to the average AND you will also need to research the CONSEQUENCES of this difference.