Question

The marital status distribution of the U.S. male population, ages 15 and older, is as follows: 31.3% never married, 56.1% married, 2.5% widowed, and 10.1% divorced/separated. A random sample of 400 U.S. young adult males, 18 to 24 years old, found 140 never married, 238 married, 2 widowed, and 20 divorced/separated. Using ? = 0.10, is this evidence that males in this age group follow a different distribution than all males in the U.S.?

Write the hypotheses, calculate the expected counts, check the condition, calculate the test statistic, and use either the critical value approach or the p-value approach to make a conclusion about the question being asked.

Answer 1

Souition Ho: Tha mola yioup , The molkis im ogg roup sis follou diffenant distnbton o-313 ub 125 2 7u95 o-56) 238 22 uu o.82u2 0、025 2-10 6、u flere al χ2-19, 2748 > 6.2.514 ashoup follo a diferent disirbuthon