Concerns about climate change and CO2 reduction have initiated the commercial production of blends of biodiesel (e.g., from renewable sources) and petrodiesel (from fossil fuel). Random samples of 34 blended fuels are tested in a lab to ascertain the bio/total carbon ratio. (a) If the true mean is .9390 with a standard deviation of 0.0080, within what interval will 95 percent of the sample means fall?
Concerns about climate change and CO2 reduction have initiated the commercial production of blends of biodiesel (e.g., from renewable sources) and petrodiesel (from fossil fuel). Random samples of 34 blended fuels are tested in a lab to ascertain the bio/total carbon ratio. (a) If the true mean is .9390 with a standard deviation of 0.0080, within what interval will 95 percent of the sample means fall?
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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Concerns about climate change and CO2 reduction have initiated the commercial production of blends of biodiesel (e.g., from renewable sources) and petrodiesel (from fossil fuel). Random samples of 34 blended fuels are tested in a lab to ascertain the bio/total carbon ratio.
(a) If the true mean is .9390 with a standard deviation of 0.0080, within what interval will 95 percent of the sample means fall?
Expert Solution
Step 1: Write down the given information
N = 34
Mean :
µx̅ = 0.9390
σ = 0.0080
σx̅ = σ /√N = 0.0080 / √34 = 0.001372
We have to calculate interval for ( 95% of sample means fall )
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