Explain carefully what the software output means

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Reference no: EM131381381

Crawling. Data collected by child development scientists produced this confidence interval for the average age (in weeks) at which babies begin to crawl:

a) Explain carefully what the software output means.

b) What is the margin of error for this interval?

c) If the researcher had calculated a 90% confidence interval, would the margin of error be larger or smaller? Explain.

Reference no: EM131381381

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