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Unformatted text preview: different from the percentage of defective seals under the second option? _____ 3. We have two scales to choose from. We weighed the same 10 bags of cookies on each scale. Do the two scales produce different weights on average? _____ 4. Our bags of cookies are listed as 20 oz. A sample of bags is selected and weighed to assess if the average weight is less than 20 oz. _____ 5. A sample of bags are weighed to assess if more than 90% are meeting the specifications (where meeting specs is defined as weighing at least 20 oz). A. 1-sample t-test for a population mean B. Paired t-test C. 2-sample t-test for the comparison of two population means D. 1-sample Z-test for a population proportion E. 2-sample Z-test for the comparison of two population proportions...
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- Winter '08