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Using the R built-in data set called Chick Weight, we want to compare the mean weight...

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Statistics

  1. Using the R built-in data set called Chick Weight, we want tocompare the mean weight across the different types of Diet.IMPORTANT: We only want to compare chicks at the final value ofTime, 21. In this problem, use ?? = 0.05.
    1. Make a boxplot to compare weight across the different types ofDiet. Based on the boxplot, describe any differences (or lack ofdifferences) you see.
    2. Run an ANOVA to compare weight across the different types ofDiet. Is there a significant difference in means?
    3. Regardless of your answer to part b, using Tukey’s HSDapproach, which pair or pairs of Diet have significantly differentmeans?
    4. Check the assumptions of the ANOVA: Do the variances looksimilar across groups? And do the residuals look like they couldhave come from a Normal Distribution?

Answers should be in the form of R code on how to accomplisheach part and include the correct statistical explanation for thosethat require it in the question. Please be as thorough as possible.Thank you so much!!!

Answer & Explanation Solved by verified expert
3.9 Ratings (541 Votes)
RcodesheadChickWeight data entryboxplotweightDietdataChickWeight    See Answer
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