Question
The General Social Survey asked respondents If ever married, how old were you when you first married? It was found that out of the 26,540
The General Social Survey asked respondents "If ever married, how old were you when you first married?" It was found that out of the 26,540 individuals surveyed, the average age of marriage was 22.15 years with a standard deviation of 4.885 years.
Construct a 95% Confidence Interval for the average age of marriage(round to 3 decimal places).
Interpret the Confidence Interval above.
Also, why is the interval above so narrow?
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Advanced Engineering Mathematics
Authors: ERWIN KREYSZIG
9th Edition
0471488852, 978-0471488859
