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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. 1sample ttest for a population mean B. Paired ttest C. 2sample ttest for the comparison of two population means D. 1sample Ztest for a population proportion E. 2sample Ztest for the comparison of two population proportions...
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 Winter '08
 Gunderson

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