The mean and standard deviation of a random sample of n measurements are equal to 33.9 and
Question:
a. Find a 95% confidence interval for µ if n = 100.
b. Find a 95% confidence interval for µ if n = 400.
c. Find the widths of the confidence intervals you calculated in parts a and b. What is the effect on the width of a confidence interval of quadrupling the sample size while holding the confidence coefficient fixed?
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a For confidence coefficient 95 05 and 2 05 2 025 From Table IV Appendix A z 025 1...View the full answer
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Saud Ur Rehman
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