Suppose that a journal article reports that the mean age at marriage of Filipino women is 22.6 years in urban areas and 18.4 years in rural areas. These findings are based on a sample survey of 150 urban and 180 rural women. The report did not indicate the corresponding variances of the estimates. However, a review of past data shows that the variances for the age at marriage of Filipino women are 7.2 and 5.8 for urban and rural areas, respectively. Is there a significant difference between the age  at marriage of women in urban and

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