Mathematics, 12.01.2020 22:31, tylijahking

Asociologist found that in a random sample of 50 retired men, the average number of jobs they had during their lifetimes was 7.2. the population standard deviation is 2.1
find the 99% confidence interval of the mean number of jobs. do not round the z value, it should have two decimal places, example 2.34. round the interval to one decimal place, example 3.2 < μ < 5.6

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Asociologist found that in a random sample of 50 retired men, the average number of jobs they had du...