Question: Return to question Item1 Concerns about climate change and CO 2 reduction have initiated the commercial production of blends of biodiesel (e.g., from renewable sources)

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Item1

Concerns about climate change and CO₂reduction have initiated the commercial production of blends of biodiesel (e.g., from renewable sources) and petrodiesel (from fossil fuel). Random samples of 38 blended fuels are tested in a lab to ascertain the bio/total carbon ratio.

(a)If the true mean is .9090 with a standard deviation of 0.0030, within what interval will 95 percent of the sample means fall?(Round your answers to 4 decimal places.)

The interval is from

_____

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