Mathematics, 28.10.2020 06:30 jocelyntucker
Baby talk: In a sample of 80 children, the mean age at which they first began to combine words was 16.81 months, with a standard deviation of 9.65 months.
Construct a 95% interval for the mean age at which they first begin to combine words. Round the answers to two decimal places.
A 95% confidence interval for the mean age is
Answers: 3
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Baby talk: In a sample of 80 children, the mean age at which they first began to combine words was 1...
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