Use the confidence interval to find the estimated margin of error. Then find the sample mean.A biologist reports a confidence interval of (2.8,4.6) when estimating the mean height (in centimeters) of a sample ofseedlings.The estimated margin of error isThe sample mean is

The confidence interval is. (2.8 , 4.6)

Answered: Use the confidence interval to find the…

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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Cereals sodium values have a mean of 167 and a standard deviation of 77.3. Find the z-score for the cereal that has a sodium value of 0. How would you interpret this z-score?
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Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 67 miles per hour, with a standard deviation of 3 miles per hour. Estimate the percent of vehicles whose speeds are between 64 miles per hour and 70 miles per hour. (Assume the data set has a bell-shaped distribution.)
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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (2.8,4.6) when estimating the mean height (in centimeter seedlings. The estimated margin of error is The sample mean is