Golf
a Round of Golf on Your Typical Course Requires $\alpha$

Essay

Golf
A round of golf on your typical course requires at least 4.5 hours.A particular golf club claims that the average length of time to complete a round of golf on their course is less than 4.5 hours.To test this claim,the club sampled 15 golfers and recorded their time to finish their round.The sample average was 4.4 hours with a standard deviation of 0.8 hours.Assume the time to complete a round of golf is normally distributed and use $\alpha$ = 0.01.
-A random sample of 10 observations was drawn from a large population.The data values were: 6,4,4,7,5,5,4,5,6,and 4 Test to determine if we can infer at the 5% significance level that the population mean is less than 6.