Math  /  Data & Statistics

Question2. At significance level α=0.10\alpha=0.10, determine if the mull hy pothesis should be rejected given the test statistic and p-value. Interpret the result. a. The FDA mandates that the average number of rodent hairs in a sumple of apple butter be no more than 4 hairs. A consumer advocacy group claims that a cerrain brand is violating this standard. The test statistic is found to be 294 and the p-value is 0.0016. b. A report states that doctors are late for 12%12 \% of all appointments. A doctor claims that less than 12%12 \% of his appointments are taken late. The test statistic is found to be -0.44 and the p -value is 0.3299 . c. A company claims it has redesigned light bulbs to last longer. The previous design had an average life of 1200 hours. The test statistic is 2.08 and the pp-value is 0.0188

Studdy Solution
Interpretation for scenario (c): There is sufficient evidence at the α=0.10\alpha = 0.10 level to support the company's claim that the redesigned light bulbs last longer than the previous design.

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