This questions was asked to be done using R language programming. The datasets are available along...

This questions was asked to be done using R language programming. The datasets are available along with MASS package in Rstudio.

A. Package ‘MASS’ which provides a description of the datasets available in the MASS package Then, complete the following analysis of the identified data from the library.

B. One-sample t-test: Use the “chem” dataset to answer the question, “is the flour production company producing whole meal flour with greater than 1 part per million copper in it?”

C. Two-sample t-test: Use the “cats” dataset to answer the question, “do male and female cat samples have the same body weight?” Hint: one way to get separate vectors for male and female cat body weight is to use the subset function as follows: “male <-subset(cats, subset=(cats$Sex=M))”

D. Paired t-test: Use the “shoes” dataset to answer the question, “did material A wear better than material B?”

E. Test of equal or given proportions: Use the “bacteria” data set to answer the question, “did the drug treatment have a significant effect of the presence of the bacteria compared with the placebo?” F. F-test: Use the “cats” data set to test for the variance of the body weight in male and female cats.

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Note: Allowed to solved only 4 question. solved from a to e.

orchestra answered 1 year ago

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