STA 2381 Study Guide - Final Guide: Siberian Husky, Altimeter, Heterochromia Iridum
31 Dec 2019
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Fall 2018: there is a condition called heterochromia in dogs, which causes the dog to have different colored eyes. Huskies seem to be more likely to have this condition. It was previously known that 5% of siberian huskies have this condition but it is speculated that this percent has risen recently. To test a random sample of 150 huskies is obtained and 12 are found to have heterochromia. At the 2. 5% significance level, what conclusion can be reached: previous research conducted in january of 2018 suggests that 41% of wacoans say caf cappuccino is better than. We want to perform a new study where we will create a confidence interval for the proportion of wacoans who prefer caf cappuccino over magnolia now. We want our estimate to be within 3% of the true percentage, with 99% confidence. To test this, you ask a random sample of 9 students to drink an energy drink before a test.
