Answered: esearchers are interested in the effect…

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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Researchers are interested in the effect of a certain nutrient on the growth rate of plant seedlings. Using a hydroponics grow procedure that utilized water containing the nutrient, they planted six tomato plants and recorded the heights of each plant 14 days after germination. Those heights, measured in millimeters, were

55.6, 60.1, 61.5, 63.8,66.6, and 70.5

a) Using technology, find the 95% confidence interval for the population mean μ. (How do you use technology to find this? what are the steps?)

b. Name two things you could do to get a narrower interval than the one in part a.

I answered a higher confidence level, and increased sample size.

c. using technology, construct a 99% confidence interval.

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