Golf course designers are concerned that the old courses are becoming obsolete because new equipment enables golfers to hit the ball so far. One designer believes the new course need to build with the expectation that players will be able to hit the ball more than 250 yards on average. A sample of 29 golfers was tested and their mean distance was 256 yards with standard deviation of 15. is this significant at the 5% level?
The following demonstrates the process for constructing a hypothesis test to determine if the mean distance for hitting a golf ball is different than 250 yards. A t-test is used with a sample size of 29 golfers.