Sub: Statistics Topic:Testing
Find the confidence interval for single mean.
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A study shows that children who attended a high-quality daycare program before they enter
school perform better on math tests than children who do not have daycare experience. The
data showed that a sample of n = 25 children who attended day care before starting school had
an average score of M = 87 with SS = 1536 on a standardized math test for which the
population mean is µ = 81.
a. Use the sample data to make a point estimate of the average math t