Please answer my math question

Posted on 2014-12-05 13:39:00 in Math by ELI

A random sample of 16 female college-aged dancers showed a sample mean height 64.8 of inches and a sample standard deviation of 1.7 inches.

1.Find a 95% confidence interval for the population mean height of dancers and interpret the interval.

2. Find a 99% confidence interval for the population mean height and interpret the interval.

3. Which interval is wider and why?

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