Jevons’s gold coins (Data file: jevons) The data in this example are deduced from a diagram in Jevons XXXXXXXXXXand provided by Stephen M. Stigler. In a study of coinage, Jevons weighed 274 gold...

Jevons’s gold coins (Data file: jevons) The data in this example are deduced from a diagram in Jevons (1868) and provided by Stephen M. Stigler. In a study of coinage, Jevons weighed 274 gold sovereigns that he had collected from circulation in Manchester, England. For each coin, he recorded the weight after cleaning to the nearest 0.001 g, and the date of issue. The data file includes Age, the age of the coin in decades, n, the number of coins in the age class, Weight, the average weight of the coins in the age class, SD, the standard deviation of the weights. The minimum Min and maximum Max of the weights are also given. The standard weight of a gold sovereign was 7.9876 g; the minimum legal weight was 7.9379 g.