Construct a confidence interval for at the indicated level


A random sample of n measurements obtained from a normally distributed population yielded =­ 450 and s =­ 60. Construct a confidence interval for µ at the indicated level of confidence.

1. 95% confidence interval, n = 4

2. 95% confidence interval, n = 25

3. 98% confidence interval, n = 25

4. 99% confidence interval, n = 25

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Basic Statistics: Construct a confidence interval for at the indicated level
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