Course Solutions Uncategorized (Solved) : 9 48 Hypothesis Used Test Population Mean Equals 7 Alternative Population Mean Equal 7 Unk Q33025217 . . . .

(Solved) : 9 48 Hypothesis Used Test Population Mean Equals 7 Alternative Population Mean Equal 7 Unk Q33025217 . . . .

 

9-48. A hypothesis will be used to test that a population mean equals 7 against the alternative that the population mean does not equal 7 with unknown variance σ2. What are the critical values for the test statistic To for the following significance levels and sample sizes? (a) α-0.01 and n-18 (b) a-0.05 and n-15 (c) α-0.10 and n-14 9-90. A manufacturer of interocular lenses will qualify a new grinding machine if there is evidence that the percentage of polished lenses that contain surface defects does not exceed 2% A random sample of 250 lenses contains 7 defective lenses 

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