In: Statistics and Probability
Are biomedical engineering salaries in Miami equal to those in Minnesota or is there a difference? A study was conducted looking at 40 staff engineering salaries from Miami and 45 staff engineering salaries in Minnesota: Miami – sample size =40, average salary = 69,000, sample standard deviation = 1250 Minnesota – sample size = 45, average salary = 72,000, sample standard deviation = 1450. At a 0.05 level of significance, can we conclude there is a difference in salaries based on the random sampled data? (assume that the standard deviations from the population although unknown are equal) can you put it in z test? thank you