People who describe their marrage as happy are less likely to get divorced
Added by Daniel V.
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The marriage and divorce rates are given per 1000 people in various years. Find the divorce rate as a percentage of the marriage rate and comment on the trend over time. (Source: https://www.cdc.gov/nchs) $$ \begin{array}{|c|c|c|} \hline \text { Year } & \text { Marriage } & \text { Divorce } \\ \hline 2000 & 8.2 & 4.0 \\ \hline 2005 & 7.6 & 3.6 \\ \hline 2010 & 6.8 & 3.6 \\ \hline 2014 & 6.9 & 3.2 \\ \hline \end{array} $$
Marriage counselors administered a test designed for 30 randomly selected married couples to measure their overall contentment. The scores for each couple, which correspond to their level of contentment or happiness, are given below. To test the hypothesis that, on average, men and women are not equally happy in marriage, a significance level of 1% was used.
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A marriage counselor administered a test designed to measure overall contentment to 30 randomly selected married couples. The scores for each couple are given below. A higher number corresponds to greater contentment or happiness. Test, at the 1% level of significance, the hypothesis that, on average, men and women are not equally happy in marriage.
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