According to the Civil Code of the Philippines, the marriageable age of Filipinos is 18. A researcher found out that the average age of Filipinos who got married is 23 years old. A random sample of 25 married couples were taken. Is there a reason to believe that the sample is significantly younger that the others in getting married at 1% level of significance? (the output range should be at cell G4)
25, 28, 30, 32, 31, 32, 28, 28, 20, 20, 21, 22, 23, 23, 22, 21, 20, 26, 26, 29, 30, 29, 30, 24, 24
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