According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative quality of wines. Wine scores range from 0 to 100, with a score of 95 – 100 indicating a great wine, 90 – 94 indicating an outstanding wine, 85 – 89 indicating a very good wine, 80 – 84 indicating a good wine, 75 - 79 indicating a mediocre wine, and below 75 indicating that the wine is not recommended. Random ratings of a pinot noir recently produced by a newly established vineyard in 2018 follow: Excel File: data07-11.xlsx 87 91 86 82 72 91 60 77 80 79 83 96 a. Develop a point estimate of mean wine score for this pinot noir (to 2 decimals). b. Develop a point estimate of the standard deviation for wine scores received by this pinot noir (to 4 decimals).
According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative quality of wines. Wine scores range from 0 to 100, with a score of 95 – 100 indicating a great wine, 90 – 94 indicating an outstanding wine, 85 – 89 indicating a very good wine, 80 – 84 indicating a good wine, 75 - 79 indicating a mediocre wine, and below 75 indicating that the wine is not recommended. Random ratings of a pinot noir recently produced by a newly established vineyard in 2018 follow: Excel File: data07-11.xlsx 87 91 86 82 72 91 60 77 80 79 83 96 a. Develop a point estimate of mean wine score for this pinot noir (to 2 decimals). b. Develop a point estimate of the standard deviation for wine scores received by this pinot noir (to 4 decimals).
Chapter7: Uncertainty
Section: Chapter Questions
Problem 7.15P
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Transcribed Image Text:According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative quality of wines. Wine scores range
from 0 to 100, with a score of 95 – 100 indicating a great wine, 90 – 94 indicating an outstanding wine, 85 – 89 indicating a very good wine, 80 – 84
indicating a good wine, 75 - 79 indicating a mediocre wine, and below 75 indicating that the wine is not recommended. Random ratings of a pinot noir recently
produced by a newly established vineyard in 2018 follow:
Excel File: data07-11.xlsx
87
91
86
82
72
91
60
77
80
79
83
96
a. Develop a point estimate of mean wine score for this pinot noir (to 2 decimals).
b. Develop a point estimate of the standard deviation for wine scores received by this pinot noir (to 4 decimals).
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