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統計學~~~幫幫我 教教我 救救我

這是我的統計可是我看不懂 Here are the amounts spent (in dollars) by 50 consecutive shoppers at a supermarket

arranged in increasing order:3.118.889.2610.8112.6913.7815.2315.6217.0017.3918.3618.4319.2719.5019.5420.1620.5922.2223.0424.4724.5825.1326.2426.2627.6528.0628.0828.3832.0334.9836.3738.6439.1641.0242.9744.0844.6745.4046.6948.6550.3952.7554.8059.0761.2270.3282.7085.7686.3793.34（a）Find the mean amount spent from the formula for the mean. Then enter the data into your calculator or software and use the mean function to obtain the mean. Verify that you get the same result.（b）A stemplot (Exercise 1.11) suggests that the largest four values may be a cluster of outliers. Find the mean for the 46 observations that remain when you drop these outliers. How do the outliers change the mean.（c）Please find the median of these amounts. Is the median smaller or larger than the mean? Explain why this is so.（d）Please find the five numbers summary of these data. Please specify how to determine the answer.（e）Please plot boxplot of these data.（f）Please use