GreenBeam Limited claims that its compact fluorescent bulbs average no more than 3.63 mg of mercury. A sample of 60 bulbs shows a mean of 3.7 mg of mercury. (b) Assuming a known standard deviation of 0.22 mg, calculate the z test statistic to test the manufacturer’s claim. (Round your answer to 2 decimal places.) (d) Find the p-value. (Round intermediate calculations to 2 decimal places. Round your answer to 4 decimal places.)

MATLAB: An Introduction with Applications
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GreenBeam Limited claims that its compact fluorescent bulbs average no more than 3.63 mg of mercury. A sample of 60 bulbs shows a mean of 3.7 mg of mercury.

 

(b) Assuming a known standard deviation of 0.22 mg, calculate the z test statistic to test the manufacturer’s claim. (Round your answer to 2 decimal places.)

 

 

(d) Find the p-value. (Round intermediate calculations to 2 decimal places. Round your answer to 4 decimal places.)

 
 
 
 
 
 
 
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