Shetland wool is considered some of the finest in the world because it is soft, durable, and easy to spin. The mean fleece weight from a typical sheep is 3.25 pounds with a standard deviation of 0.4...

Shetland wool is considered some of the finest in the world because it is soft, durable, and easy to spin. The mean fleece weight from a typical sheep is 3.25 pounds with a standard deviation of 0.4 pound. Suppose a farmer has 100 sheep ready to be sheared.

A wingsuit is a specially designed jumpsuit with added surface area to provide more lift. Extremesports enthusiasts wear this suit and jump from planes or a fixed object (BASE jumping, where BASE stands for Building, Antenna, Span, Earth). One of the most popular BASE environments is Troll Wall in Norway. Suppose the mean flight time for a wingsuit jump at Troll Wall is 22.5 seconds with standard deviation 2.3 seconds. Thirty-two jumpers are selected at random to test a new wingsuit at Troll Wall.