In each of Exercises, use the Wilcoxon signed-rank test to perform the required hypothesis test. How Old People Are. In 2010, the median age of U.S. residents was 37.2 years, as reported by the U.S. Census Bureau in Current Population Reports. A random sample of 10 U.S. residents taken this year yielded the following ages, in years 44 64 16 59 38 47 51 41 13 28 At the 1% significance level, do the data provide sufficient evidence to conclude that the median age of today’s U.S. residents has increased from the 2010 median age of 37.2 years?

Question

In each of Exercises, use the Wilcoxon signed-rank test to perform the required hypothesis test.

How Old People Are. In 2010, the median age of U.S. residents was 37.2 years, as reported by the U.S. Census Bureau in Current Population Reports. A random sample of 10 U.S. residents taken this year yielded the following ages, in years

44 64 16 59 38
47 51 41 13 28

At the 1% significance level, do the data provide sufficient evidence to conclude that the median age of today’s U.S. residents has increased from the 2010 median age of 37.2 years?

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