The Peterson Toy Company designs and manufactures games for

The Peterson Toy Company designs and manufactures games for children and adults. The company has several popular games currently in production, but still finds itself with excess production capacity. Consequently the company introduces new games as fast as they are designed and at the same time eliminates poor sellers from production. The marketing people push for games with recognizable themes and attempt to time their introduction for a holiday season, particularly Christmas.

The Peterson marketing people have performed extensive market research to determine what factors are most influential in a game

Solution

Suppose the variances of the times needed to complete the games are 900 minutes for each game. The company is willing to accept a 0.07 chance of a Type 1 error and selects a sample of 100 for each game. Mean times to play each game are 50 minutes for game