To test the theory that the consumption of red meat has decreased over the last 5 years, a researcher decides to select hospital nutrition records for 400 subjects surveyed 5 years ago and to compare their average amount (in kg) of beef consumed per year to the average amount (in kg) consumed by an equal number of subjects interviewed this year. The data are given in the table: Sample mean Sample standard deviation Five years ago This year 34 13 31 14 Do the data present sufficient evidence to indicate that per-capita beef consumption has decreased in the last 5 years? Test by finding a 99% lower confidence bound and use this bound to answer the question. If you do find a decrease, also indicate by how much the decrease is likely to be.

To test the theory that the consumption of red meat has decreased over the last 5 years, a researcher decides to select hospital nutrition records for 400 subjects surveyed 5 years ago and to compare their average amount (in kg) of beef consumed per year to the average amount (in kg) consumed by an equal number of subjects interviewed this year. The data are given in the table: Sample mean Sample standard deviation Five years ago This year 34 13 31 14 Do the data present sufficient evidence to indicate that per-capita beef consumption has decreased in the last 5 years? Test by finding a 99% lower confidence bound and use this bound to answer the question. If you do find a decrease, also indicate by how much the decrease is likely to be.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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