4. In a random sample of 160 couples, the difference between the husband and wife’s ages had a mean of 2.24 years and a standard deviation of 4.1 years. Test the hypothesis that men are significantly older than their wives, on average.
Added by Charles S.
Step 1
- Null Hypothesis (\(H_0\)): The mean difference in age between husbands and wives is zero or less. Mathematically, \( \mu_d \leq 0 \). - Alternative Hypothesis (\(H_1\)): The mean difference in age between husbands and wives is greater than zero. Mathematically, Show more…
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