Testing hypothesis of annual incomes of corporate trainers

Reference no: EM1311996

Q1) A study was performed on annual incomes of corporate trainers in state of New York in metropolitan areas having population less than 100,000 and in metropolitan areas having a population over 500,000. Sample statistics are given below:

Sample Statistic	Population less than 100K	Population more than 500K
Sample Size	45	60
Sample Mean	$31,290	$31,330
Sample SD	$1,060	$1,900

Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.

Reference no: EM1311996

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