Question: How would I work this out? The average NFL player in 1970 weighed 210 lbs. with a 15 lb. standard deviation. We suspect the average

How would I work this out?

The average NFL player in 1970 weighed 210 lbs. with a 15 lb. standard deviation.

We suspect the average weight for an NFL player has risen over the years.

A random sample of 50 players weights were taking resulting in a sample mean of 246 lbs.

Test our suspicion of an increased average weight.

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