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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)?

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)?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Answer a-c

alcohol
12.86
12.88
12.81
12.70
12.51
12.60
12.25
12.53
13.49
12.84
12.93
13.36
13.52
13.62
12.25
13.16
13.88
12.87
13.32
13.08
13.50
12.79
13.11
13.23
12.58
13.17
13.84
12.45
14.34
13.48
12.36
13.69
12.85
12.96
13.78
13.73
13.45
12.82
13.58
13.40
12.20
12.77
14.16
13.71
13.40
13.27
13.17
14.13
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 g) Based on your confidence interval, is the mean alcohol content significantly different at the a = 0.05 level from 13%? Explanation
Transcribed Image Text: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 g) Based on your confidence interval, is the mean alcohol content significantly different at the a = 0.05 level from 13%? Explanation
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