Question: Hello, need help GreenBeam Ltd. claims that its compact fluorescent bulbs average no more than 3.24 mg of mercury. A sample of 25 bulbs shows

Hello, need help

GreenBeam Ltd. claims that its compact fluorescent bulbs average no more than 3.24 mg of mercury. A sample of 25 bulbs shows a mean of 3.29 mg of mercury.

Assuming a known standard deviation of 0.21 mg, calculate theztest statistic to test the manufacturer's claim.(Round your answer to 2 decimal places.)

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