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- 4. In a class of 60 students, 40 students like math, 36 like acience, 24 like both the subjects. Find the number of students who like Math only fi Science only i Either Math er Science (IV) Neither Math nor science. a. 16. 12. 52 and fiv 8 b. 17. 13. 45 and iv) 10 C. 16, 14, 50 and fiv) 8 d. 15. 00 14. 20 and (iv) 8A manuscript that has been rejected by a journal: a. can be revised and resubmitted b. cannot be resubmitted to the same journal without an invitation from the editor c. can be requested to be re-reviewed by a different set of peers within the same journal d. can be reconsidered if an additional fee is paid4
- 5.2. A new location for a park in a small city outside of Bucklin, Colorado, is going to be built. The citizens get to vote on 1 of 4 locations: • Century, • Midland, • Uber, • Southern. The voting population is 6800 citizens. Votes 1st 2nd 3rd 4th 2150 Century Midland Southern Uber 1150 Midland Uber Southern Century 1100 Uber Southern Midland Century 1600 Southern Century Uber Midland a. The location that has the most first place votes is b. The location that has the fewest first place votes is c. The location we eliminate is d. Fill in the new table. Votes 1st 2nd 3rd 4th 2150 1150 1100 1600 e. Is there a majority of votes for a location now? Yes or no? f. Which location if any should get eliminated now? g. Fill in the new table. Votes 1st 2nd 3rd 2150 1150 1100 1600 h. Is there a majority of votes for a location now? If yes, what is that location, and how many the first place votes does that location have? i. What location won the plurality vote or single location voting method?…11. A telecommunication company proposed construction of a cell site tower in a certain city. To determine whether this is to be constructed, a vote is to be taken among the residents of a city and the surrounding barangays. Many residents in the barangays feel that the proposal will pass because of the large proportion of city voters who favor the construction. A poll is taken to determine if there is a significant difference in the proportion of city voters and barangay voters favoring the proposal. If 250 of 400 city voters favor the proposal and 360 of 500 barangay residents favor it, would you agree that the proportion of city voters favoring the proposal is higher than the proportion of barangay voters? Use a 0.025 level of significance.
- 29. Despite the voracious habits of army ants, mul- tiple species of invertebrates have managed to penetrate and exploit their societies. For exam- ple, the silverfish Malayatelura ponerophila is an insect that lives only in colonies of the South- east Asia army ant, Leptogenys distinguenda, where it steals food brought in by the ants. If detected, the silverfish becomes ant food (see photo on the next page), but how does it usually evade detection? Ants recognize other ants from their own colony with a chemical signature, a complex blend of cuticular hydrocarbons (CHCs) on the surface of their exoskeleton. The silverfish have been observed rubbing up against the ants,20 and isotope-labeling studies indicate that ant CHCs are transferred to the silverfish this way. Does chemical mimicry contribute to ant tolerance of silverfish? In one of a series of experiments, von Beeren et al. (2011) collected individual silverfish from ant colonies and iso- lated them for six days, after which…1) Your new dog Rascal loves to do tricks and you are deciding between two puppy competitions to enter him into. • The first competition is the "sit" test where the puppy is asked to sit 10 times. If the puppy sits 8 or more times when asked to do so, the puppy will win a medal. • The second competition is the "shake" test where the puppy is asked to "shake" the evaluator's hand (by offering one of its paws). If the second time the puppy shakes hands with the evaluator occurs before the fourth time it is asked to do so, the puppy will win a medal. You know from training Rascal that he will sit when asked, 70% of the time, and will shake when asked 40% of the time. Assume that Rascal does tricks independently from one another. Which competition does Rascal have a better chance of winning? (Be súre to clearly denote which types of random variables you are using to model the facts of this question and round any probabilities you compute to 4 decimals).13. A manager of a cable news station dcsigned a study to see if one yawning person causes another person to yawn. Volunteers were informed they were in an experimcnt about repeated bchavior and were split into two groups. Hidden cameras were set up and the voluntcers in cach group were individually asked to go into a room with two other people, both of whom were paid actors The volunteers were told that they were part of a focus group about a new product, but during their 30 minute discussion, the paid actors purposely yawned and the proportion of times the volunteer also yawned was recorded. The paid actors for the voluntcers in group A yawned every 5 minutes and the paid actors for the voluntcers in group B yawned every 10 minutes. The voluntecrs did not know they were being recorded. Which of the following is truc about this study? The study is unethical bccause the participants in the study did dot provide informed consent and their information was not kcpt confidential. b. The…
- A sample of 270 people is surveyed. The people are classified according to political affiliation ("Democrat", "Republican", or "Independent"). They are also classified according to opinion on a bill ("in favor of", "opposed to", or "indifferent to"). The results are given in the contingency table below. In favor of Opposed to Indifferent to Democrat 28 29 34 Republican 17 46 49 Independent 16 31 Among the respondents who are in favor of the bill, what is the relative frequency of Independents? Round your answer to two decimal places. 490 6 SEP 20 MacBook Air F2 F3 DD F4 F5 F6 F7 F8 F9 F10 F11 云 202. A survey on a sample of 35 new cars being sold at a local auto dealer was conducted to see which of three popular options: Air-conditioning (A), Bluetooth (B), and Rear Camera (C), were already installed. The survey found: 18 had A, 13 had B, 12 had C, 5 had A and B, 8 had A and C, 6 had B and C, 4 had all three options. Find the number of cars that had (a) A and B but not C, (b) A and C but not B, (c) B and C but not A; (d) only one of the options; (e) at least one option; (f) exactly two options; (g) none of the options.
