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?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.5: Comparing Sets Of Data
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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%
Transcribed Image Text: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%
Transcribed Image Text: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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