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QUESTION
The lifetime of African Cichlids (tropical fish) is unknown but a sample of 75 cichlids were taken and its mean lifetime was 5.2 years with a margin of error of 420 days for 95% confidence.
The lifetime of African Cichlids (tropical fish) is unknown but a sample of 75 cichlids were taken and its
mean lifetime was 5.2 years with a margin of error of 420 days for 95% confidence.
