GreenBeam Ltd. claims that its compact fluorescent bulbs average no more than 3.50 mg of mercury. A sample of 25 bulbs shows a mean of 3.59 mg of mercury. (a) State the hypotheses for a right-tailed test, using GreenBeam's claim as the null hypothesis about the mean. a. Ho u 3.5 mg vs. H₁: <3.5 mg b. Ho: 3.5 mg vs. H₁>3.5 mg C. H: -3.5 mg vs. H₁: # 3.5 mg a Ob Oc (b) Assuming a known standard deviation of 0.18 mg, calculate the z test statistic to test the manufacturer's claim. (Round your answer to 2 decimal places.) Test statistic

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