Fat contents (in percentage) for 10 randomly selected hot dogs were given in the article "Sensory and Mechanical Assessment of the Quality of Frankfurters".
1. Use the following data to construct a 90% confidence interval for the true mean fat percentage of hot dogs:
Fat percentages from 10 randomly selected hot dogs
25.6 21.7 23.2 17.2 30.2 21.4 25.9 16.1 21.0 19.6
A) x = Note: round this answer to 1 decimal place precision
B) s = Note: round this answer to 1 decimal place precision
C) t-crit = Note: round this answer to 2 decimal place precision