Chapter 08, Section 8.2, Problem 015aFor a population data set, o = 13.3. How large a sample should be selected so that the margin of error of estimate for a 97% confidence interval for u is 2.50?Round your answer up to the nearest whole number.n =the tolerance is +/-2% Chapter 08, Section 8.2, Problem 015bFor a population data set, o = 12.6. How large a sample should be selected so that the margin of error of estimate for a 90% confidence interval for u is 3.20?Round your answer up to the nearest whole number.the tolerance is +/-2%

Solution: Given information for problem 15a σ=13.3 Population standard deviationsMargin of Error=E=…

Answered: Chapter 08, Section 8.2, Problem 015a…

Chapter 08, Section 8.2, Problem 015a For a population data set, o = 13.3. How large a sample should be selected so that the margin of error of estimate for a 97% confidence interval for u is 2.50?

MATLAB: An Introduction with Applications

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Estimation

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Question

Chapter 08, Section 8.2, Problem 015a
For a population data set, o = 13.3. How large a sample should be selected so that the margin of error of estimate for a 97% confidence interval for u is 2.50?
Round your answer up to the nearest whole number.
n =
the tolerance is +/-2%

Chapter 08, Section 8.2, Problem 015b
For a population data set, o = 12.6. How large a sample should be selected so that the margin of error of estimate for a 90% confidence interval for u is 3.20?
Round your answer up to the nearest whole number.
the tolerance is +/-2%

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