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The mean age of Senators in the 109th Congress was 60.35 years. A random sample of...

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Statistics

The mean age of Senators in the 109th Congress was 60.35 years.A random sample of 40 senators from various state senates had anaverage age of 55.4 years, and the population standard deviation is6.5 years. At \alpha α = 0.05, is there sufficient evidence thatstate senators are on average younger than the Senators inWashington? What is the statistic value? Round your answer to thenearest hundredths.

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Solution Given thatPopulation mean Sample mean Population standard deviation Sample size    See Answer
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