MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Types of Bias
Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative p…
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Check my work 2 In order to estimate the mean 30-year fixed mortgage rate for a home loan in the United States, a random sample of 23 recent loans is taken. The average calculated from this sample is 5.95%. It can be assumed that 30-year fixed mortgage rates are normally distributed with a standard deviation of 0.6%. Compute 90% and 95% confidence intervals for the population mean 30-year fixed mortgage rate. (You may find it useful to reference the z table. Round intermediate calculations to at least 4 decimal places. Round "z" value to 3 decimal places and final answers to 2 decimal places. Enter your answers as percentages, not decimals.) 2 points еBook Print Confidence Level Confidence Interval % to % to 90% % References 95% %
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Transcribed Image Text:Check my work 2 In order to estimate the mean 30-year fixed mortgage rate for a home loan in the United States, a random sample of 23 recent loans is taken. The average calculated from this sample is 5.95%. It can be assumed that 30-year fixed mortgage rates are normally distributed with a standard deviation of 0.6%. Compute 90% and 95% confidence intervals for the population mean 30-year fixed mortgage rate. (You may find it useful to reference the z table. Round intermediate calculations to at least 4 decimal places. Round "z" value to 3 decimal places and final answers to 2 decimal places. Enter your answers as percentages, not decimals.) 2 points еBook Print Confidence Level Confidence Interval % to % to 90% % References 95% %
Check my work 1 Find za/2 for each of the following confidence levels used in estimating the population mean. (You may find it useful to reference the z table. Round your answers to 2 decimal places.) za/2 points a. 90% b. 98% С. 88% еВook Print References
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Transcribed Image Text:Check my work 1 Find za/2 for each of the following confidence levels used in estimating the population mean. (You may find it useful to reference the z table. Round your answers to 2 decimal places.) za/2 points a. 90% b. 98% С. 88% еВook Print References
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