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Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to...

  1. Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H0 for the level of significance α.

Right-tailed test

z = 0.52

α = 0.06

  1. A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1000 hours. A homeowner selects 40 bulbs and finds the mean lifetime to be 990 hours with a standard deviation of 80 hours. Test the manufacturer’s claim. Use α = 0.04 and use traditional approach.

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orchestra answered 2 years ago
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