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Information Week s National IT Salary Survey showed that IT information

Information Week’s National IT Salary Survey showed that IT (information technology) staff between the ages of 36 and 45 earned, on average, $67,000 per year. The average increased to $69,000 for IT staff between the ages of 46 and 55, and to $70,000 for those 56 or older. Assume the table below shows details of the study:

Use one-way analysis of variance to determine if there is sufficient sample evidence to reject a “no difference in population mean salaries” null hypothesis at the 1% significance level.

Use one-way analysis of variance to determine if there is sufficient sample evidence to reject a “no difference in population mean salaries” null hypothesis at the 1% significance level.

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