Question

Concerns about climate change in CO2 reduction have initiated the commercial production of blends of biodiesel from renewable sources and petrol diesel from fossil fuel. Random samples of 33 blended fuels are tested in a lab to a Surtain the bio total carbon ratio if the true mean is .9 5,10 with a standard deviation of 0.0030 within what interview will 99% of the sample means fall

Answer 1

True mean= 0.955

Standard deviation= 0.005

Sample size= 41

The z score of two tailed ninety five percent probability is 2.02. It is observed from a table by observing the 95 percent interval for degree of freedom, which is (sample size - 1).



So, the sample mean will fall between confidence interval will be,





(0.9535, 0.9565)

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