EXPERIENCES HAD SHOWN THAT 20% OF A MANUFACTURED PRODUCT IS ON THE TOP QUALITY. IN DAY PRODUCTION OF 400 ARTICLES ONLY 50 ARE TOP QUALITY. TEST THE HYPOTHESIS AT 0.05 LEVEL. Your answer
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- Estimate the age of a newly discovered fossil for which the ratio of carbon-14 to carbon-12 is R=1/1014.In 1906, San Francisco experienced an intense earthquake with a magnitude of 7.8 on the Richter scale. In 1989, the Loma Prieta earthquake also affected the San Francisco area, and measured 6.9 on the Richter scale. Compare the intensities of the two earthquakes.In 2014, Chile experienced an intense earthquake with a magnitude of 8.2 on the Richter scale. In 2014, Los Angeles also experienced an earthquake which measured 5.1 on the Richter scale. Compare the intensities of the two earthquakes.
- the brand manager for a toothpaste brand must plan a campaign designed to increase brand recognition. H1e wants to first demonstrate the percentage of adults who have heard of the product. How many adults must he survey in order to be 95 percent confident that his estimate is within 5 percentage points of the true population percentage? n=?. Students may be classified as having a math dysfunction—and not have to take statistics—if they score below the 25th percentile on a diagnostic test. The m of the test is 75 and sX 10. Approximately what raw score is the cutoff score needed to avoid taking statistics?A researcher reports an F-ratio with df = 1, 24 for an independent-measures experiment. If all the treatments had the same number of participants, then how many individuals were in each treatment?