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The National Football League (NFL) polls fans to develop a rating for each football game. Each game is rated on a scale from 0 (forgettable)

The National Football League (NFL) polls fans to develop a rating for each football game. Each game is rated on a scale from 0 (forgettable) to 100 (memorable). The fan ratings for a random sample of 12 games follow.

57 62 87 75 72 73

20 57 81 80 83 75

a.Develop a point estimate of mean fan rating for the population of NFL games (to 2 decimals).

b.Develop a point estimate of the standard deviation for the population of NFL games (to 4 decimals).

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