Question

STATE: The toco toucan, Ramphastos toco, the largest member of the toucan family possesses the largest beak relative to body size of all birds. This exaggerated feature has received various interpretations, such as being a refined adaptation for feeding. However, the large surface area may also be an important mechanism for radiating heat (and hence cooling the bird) as outdoor temperature increases. The data for beak heat loss, as a percent of total body heat loss, at various temperatures in degrees Celsius are given 16 1718 192021 Temperature C) 15 22 35 33 46 55 51 Percent heat loss from beak 32 34 37 23 2425 2627 2829 Temperature C 30 53 58 Percent heat loss from beak 43 52 45 60 62 62 To access the complete data set, click the link for your preferred software format: Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt! PLAN: Use the software of your choice to create a scatterplot of the data using the percent heat loss from beak as the response variable, and temperature as the explanatory variable Select the scatterplot that accurately displays the data 50 40 30 10 20 25 30 15 Temperature (o Celsius) 60 50 30 10 15 20 25 30 Temperature (o Celsius) 50 30 10 30 15 20 25 Temperature (o Celsius) 60 50 40 30 20 25 30 10 15 Temperature (o Celsius) SOLVE: Calculate the correlation, r, between temperature and the percent of heat loss from beak. (Enter your answer to rounded to three decimal places.) 0.914 r = CONCLUDE: What does this tell us about the relationship between the two variables? O This suggests that the toucan's large beak definitely plays a role in temperature regulation This suggests that the toucan's large beak may indeed play a role in temperature regulation O This suggests that the toucan's large beak does not play a role in temperature regulation O None of the options are correct Percent heat loss from beak Percent heat loss from beak Percent heat loss from beak Percent heat loss from beak 40 40 60 60

Answer 1

plot of Percent heat loss from beak vs Temperature SER Scatterplot of Percent heat loss from beak vs Temperature Percent heat loss from beak- 15.0 17.5 20.0 22.5 25.0 27.5 30.0 - Temperature

ce e pe Scatterplot : option - 3 Here, Temperature is independent (explanatory) variable. percent heat loss from beak is dependent variable (response variable). The relation between variables is strong (r=0.914). But toucan's large beak can't regulate temperature. However toucan's large beak is regulated by tempera- ture. therefore option-4 | None of the options are correct is the right choise. these ero- OVO CO