Alcohol in wine. The alcohol content of wine depends on the grape variety, the way in which the wine is produced from the grapes, the weather, and other influences. Here are data on the percent of alcohol in wine produced from the same grape variety in the same year by 48 winemakers in the same region of Italy. It is known that the expected content should be 12% a) Plot each data set in Histogram to investigate the shape of the distributions and explain the what you see. (Hint: Try using bin range of 0.25) Explanation b) Set up the Null and Alternative Hypothesis (95% Confidence) Null Hypothesis Alternative Hypothesis c) What are the df (degrees of Freedom)? d) What is the p-value (Show you work on how you got it). e) Determine the Confidence Interval ay 95%. f) Based on your confidence interval, is the mean alcohol content significantly different at the a = 0.05 level from 12%? Explanation

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.