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The microbeersF22.csv dataset is a random sample of 75 microbrews from around the United States. The variable abv represents the percent of alcohol by volume
The microbeersF22.csv dataset is a random sample of 75 microbrews from around the United States. The variable "abv" represents the percent of alcohol by volume for each craft beer.According to the National Institute of Health, one standard serving of alcoholis usually about 5% alcohol by volume (abv).
Does the sample of microbrews provide evidence the average alcohol by volume of all craft beers is different from a standard serving of beer at 5% abv?
Use this dataset and the R script DA5_t_procedures.R to complete the following:
- What is the parameter of interest in this scenario? Provide the symbol and context.
- State the null and alternative hypothesis to answer the question of interest.
- Make a histogram or boxplot to visualize the variable abv. Is there visual evidence the average alcohol by volume is different than 5%?
- Check the conditions for inference. State them and whether they are met.
- Use the t.test() command in R to perform the test. Paste your results. From the R output, explain in a four-part conclusion describing the results. Use
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