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The manufacturer of WinterSafe claims that its product will melt snow and ice at temperatures as low as 0 degrees Fahrenheit.A testing company decides to

The manufacturer of WinterSafe claims that its product will melt snow and ice at temperatures as low as 0 degrees Fahrenheit.A testing company decides to test the claimThe testing company wants to know with 95% confidence and within +/- 0.05 what proportion of bags of WinterSafe perform the job as claimed.

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