Question

According to a certain website, 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:

81	93	80	84	66	93
54	79	74	81	77	98

(a) Develop a point estimate of mean wine score for this pinot noir.

(b) Develop a point estimate of the standard deviation for wine scores received by this pinot noir.

Answer 1

The statistical software output for this problem is:

Summary statistics: Column Mean Std. dev. Data 80.25 11.4822

Hence,

a) Point estimate of mean = 80.25

b) Point estimate of standard deviation = 11.4822