GreenBeam Ltd. claims that its compact fluorescent bulbs average no more than 3.

Question

GreenBeam Ltd. claims that its compact fluorescent bulbs average no more than 3.66 mg of mercury. A sample of 45 bulbs shows a mean of 3.75 mg of mercury.

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

p-value=

Using Appendix C-1 or Appendix C-2 find the p-value for each test statistic. (Round your answers to 4 decimal places.)

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

Explanation / Answer

A) Z=2.08 then P=1-0.9812=0.0188

B)Z=-2.82 then P=1-0.9975=0.0025

C)Z=-1.62 then P=2(1-0.9463)=0.1074

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