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Can someone please help me with this question? I would appreciate a throughout explanation or step by step~ ' . For the following variables of

Can someone please help me with this question? I would appreciate a throughout explanation or step by step~

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' . For the following variables of interest. i] Use R to create a normal probability plot and a histogram. Paste your work into your report ii] Describe your findings. In particular. do the graphs provide evidence against. the assumption of a normally distributed population? iii] Based on your descriptions [as well as the sample size n}. determine if one mean inference is valid, and whether zprocedures or tproceclures should be employed. For each dataset; you may assume the data are obtained via random sampling and that the population standard deviation is unknot-vn. a] The dataset \"Schoollxlsx\" contains information regarding a sample of 100 schools from Great Britain. The variable of interest is GPSVERAGE [average grammar scores on an aptitude test for students at that. school]. [3 marks] b] The dataset \"BeerE lads: contains information regarding a sample of 21 beers brands in the United States. The \\-'ariable of interest is abv [alcohol by volume] for the beer brands. [3 marks} :3] In the above work, we did not examine the boxplots for the considered samples. What can a boxplot show us that cannot be seen in a normal probability plot or histogram? [2 marks}

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