In a Honolulu Heart Study, researchers are intered in studying the following question: Do people living in Hawaii live longer than the national average? The mean age of the population is 53 years. The mean age of 101 persons in Hawaii equal 54.85, with a standard deviation of 5.5 years. Use a significance level of 0.05. What is the observed test statistic?

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In a Honolulu Heart Study, researchers are intered in studying the following question: Do people living in Hawaii live longer than the national average? The mean age of the population is 53 years. The mean age of 101 persons in Hawaii equal 54.85, with a standard deviation of 5.5 years. Use a significance level of 0.05.

What is the observed test statistic?

Expert Solution
Step 1

The summary of statistics is,

x¯=54.85s=5.5n=101

The formula for calculating the observed test statistic is,

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