For the data on 26 red wines given above, conduct the following analysis: i. Provide five-number summary
Question:
For the data on 26 red wines given above, conduct the following analysis:
i. Provide five-number summary i.e. the minimum, 1st quartile, median, 3rd quartile, and maximum value for fixed acidity. Arrange them in increasing order on a straight line, draw a box plot and interpret what it means.
ii. Calculate the correlation coefficient between fixed acidity and volatile acidity and between residual sugar and chlorides. Comment on the strength and direction of association for the two variable pairs.
iii. What can be stated about the cause-effect relationship between fixed acidity and volatile acidity, based on the correlation coefficient score?
Fixed acidity - Volatile acidity - Citric acid - Residual sugar -Chlorides
7.4 0.7 0 1.9 0.076
7.8 0.88 0 2.6 0.098
7.8 0.76 0.04 2.3 0.092
11.2 0.28 0.56 1.9 0.075
7.4 0.7 0 1.9 0.076
7.4 0.66 0 1.8 0.075
7.9 0.6 0.06 1.6 0.069
7.3 0.65 0 1.2 0.065
7.8 0.58 0.02 2 0.073
7.5 0.5 0.36 6.1 0.071
6.7 0.58 0.08 1.8 0.097
7.5 0.5 0.36 6.1 0.071
5.6 0.615 0 1.6 0.089
7.8 0.61 0.29 1.6 0.114
8.9 0.62 0.18 3.8 0.176
8.9 0.62 0.19 3.9 0.17
8.5 0.28 0.56 1.8 0.092
8.1 0.56 0.28 1.7 0.368
7.4 0.59 0.08 4.4 0.086
7.9 0.32 0.51 1.8 0.341
8.9 0.22 0.48 1.8 0.077
7.6 0.39 0.31 2.3 0.082
7.9 0.43 0.21 1.6 0.106
8.5 0.49 0.11 2.3 0.084
6.9 0.4 0.14 2.4 0.085
6.3 0.39 0.16 1.4 0.08
Expert Answer:
