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The most current value of the life expectancy of a man in Canada is 78.8 years...

The most current value of the life expectancy of a man in Canada is 78.8 years (SD = 15 years) (Disabled World, 2017). Researchers hypothesize that living with diabetes shortens a man's life. You collect data on the age at death for a sample of 100 men who lived with diabetes and found the following data.

mean age at death = 73.8 years

Test the hypothesis at the 5% significance level using the 5-step hypothesis testing procedure (show all steps). Round all values to 2 decimal places. Submit a scan or picture of your work.

Math   Statistics-And-Probability   
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