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A recent survey revealed that mean happiness (measured on a 1 to 10 scale) in a...

A recent survey revealed that mean happiness (measured on a 1 to 10 scale) in a sample of 43 adult Americans below the age of 65 was 5.34 with standard deviation of 0.43, while for 23 Americans above the age of 65 it inched above to the mean value of 5.88 with standard deviation of 0.61. Is this enough to conclude that senior Americans are happier (on average) than the younger and middle-aged ones at 0.1 significance level?

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