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Mathematics, 25.08.2021 20:50 soyymiilk
In a sample of 80 children, the mean age at which they first began to combine words was 16.51 months with a sample standard deviation of 9.59 months. Construct a 95% confidence interval for the mean age children begin to combine words.
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In a sample of 80 children, the mean age at which they first began to combine words was 16.51 months...
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