The critically endangered Maui’s dolphin is currently restricted to a relatively small stretch of coastline along the west coast of New Zealand’s North Island. The dolphins are “captured” by just collecting samples of DNA and “tagged” by identifying their DNA fingerprint. A 2010-2011 capture-recapture study “captured” and “tagged” 26 Maui’s dolphins in 2010. In 2011, 27 Maui’s dolphins were “recaptured” and through their DNA, 12 were identified as having been “tagged” in 2010. Based on these figures, estimate the population of Maui’s dolphins in 2011. [Source: Oremus, M., et al, “Distribution, group characteristics and movements of the critically endangered Maui’s Dolphin (Cephalorhynchus hectori maui).” Endangered Species Research, preprint.]
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MYMATHLAB ACCESS F/MGF 1107
- Based on a survey of 12,344 U.S. college students and 6,729 Canadian college students, Kuo, Adlaf, Lee, Gliksman, Demers, and Wechsler (2002) report that alcohol use is more common among Canadian than U.S. students, but heavy drinking (five or more drinks in a row for males, four or more for females) is significantly higher among U.S. students than Canadian students. Is this an example of a survey research design?arrow_forwardA study in Sweden looked at former elite soccer players, people who had played soccer but not at the elite level, and people of the same age who did not play soccer. Here is a two-way table that classifies these subjects by whether or not they had arthritis of the hip or knee by their mid-fifties: Elite Non-elite Did not play Arthritis 10 9 24 No arthritis 61 206 548 Based on this study, you can conclude thatarrow_forwardAt a TV assembling facility, the Quality Assurance (QA) department tested a random selection of 500 TV's assembled in March. The tested TV's had an average retail price of $475, 2.4% had some type of defect, and 7 did not power up at all. The plant manager compared that to the total 6753 of TV's that were assembled during the month of March. They had an average retail price of $395 , 3.2% had been reported defective by customers, and did not power up at all. For the QA department's tests, identify the population and the sample. Choose whether each number described below is a parameter or a statistic for the QA department's tests. Number Parameter Statistic The 7 TV's of the random selection of 500 TV's that did not power up at all The 2.4% of the random selection of 500 TV's found to be defective The average retail price of $395 of all the TV's assembled during the month of Marcharrow_forward
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- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL