McDonaldâs Quandary Ronald McDonald wants to find out if he could sell even more hamburgers by providing nutritional information on his take out menus. In a large city, two McDonaldâs Restaurants with similar daily sales are chosen to use for this experiment. Restaurant A will make no changes to their menu, Restaurant B will add calorie counts to all hamburger options on the menu. At the end of the experimental period, Restaurant A had sold 550 hamburgers. Restaurant B had sold 650 hamburgers.
A. Which restaurant is the control?
B. What is the experimental variable?
C. What conclusions, if any, can be drawn from this data?
D. Should this information be used to make predictions about other McDonaldâs locations? Why or why not?
E. Outline two issues with this experiment. (There are many, just pick 2)
BIOL 1014 Lab 1 Scientific Method (Continued) 2 â Jet Skis and Coral A marine biologist believes that trace fuel emissions of pleasure craft such as jet skis and boats are having a negative effect on the growth rate of a coral species that lives off a public beach. The biologist designs an experiment in the lab exposing Tank A of coral to traces of fuel and Tank B is exposed to no fuel traces. Both tanks have the same amount of sunlight, are given the same nutrients, have the same salt concentration and atmospheric conditions. Over a period of several months, the biologist monitors the growth patterns of each tank and discovers the tank without the fuel (Tank B) actually reproduced less than the tank with the traces of fuel (Tank A).
A. What is the above biologistâs hypothesis?
B. Which tank contains the control group?
C. Which tank contains the experimental group?
D. What is the experimental variable?
E. Does the data collected support the original hypothesis of the biologist? Why or why not?
F. What are two possible problems with this experiment, or sources of error?
BIOL 1014 Lab 1 Scientific Method (Continued) 3 - Crossword Contest Time to Solve Weekly
Crossword
Puzzle Week Bart (min) Lisa (min) Homer (min) 1 15.00 5.00 35.00 2 20.00 3.00 42.00 3 18.00 5.00 45.00 4 15.00 4.00 40.00 Average 17.00 4.25 40.50
The Simpson family decided to have a crossword puzzle contest. (Maggie canât read and Marge is way too busy.) The Nuclear Meltdown Press has a weekly crossword in its Springfield edition. Each week, when the puzzle arrives, Bart, Lisa and Homer time themselves and record the time it takes for them to complete the puzzle.
A. Based on the data above, which Simpson is the fastest with crossword puzzles?
B. In this âexperimentâ what can you identify as the experimental variable?
C. What are two possible explanations for the differences observed between the subjects in this study?
D. What additional experiments could you recommend to better determine what may have caused these differences?
McDonaldâs Quandary Ronald McDonald wants to find out if he could sell even more hamburgers by providing nutritional information on his take out menus. In a large city, two McDonaldâs Restaurants with similar daily sales are chosen to use for this experiment. Restaurant A will make no changes to their menu, Restaurant B will add calorie counts to all hamburger options on the menu. At the end of the experimental period, Restaurant A had sold 550 hamburgers. Restaurant B had sold 650 hamburgers.
A. Which restaurant is the control?
B. What is the experimental variable?
C. What conclusions, if any, can be drawn from this data?
D. Should this information be used to make predictions about other McDonaldâs locations? Why or why not?
E. Outline two issues with this experiment. (There are many, just pick 2)
BIOL 1014 Lab 1 Scientific Method (Continued) 2 â Jet Skis and Coral A marine biologist believes that trace fuel emissions of pleasure craft such as jet skis and boats are having a negative effect on the growth rate of a coral species that lives off a public beach. The biologist designs an experiment in the lab exposing Tank A of coral to traces of fuel and Tank B is exposed to no fuel traces. Both tanks have the same amount of sunlight, are given the same nutrients, have the same salt concentration and atmospheric conditions. Over a period of several months, the biologist monitors the growth patterns of each tank and discovers the tank without the fuel (Tank B) actually reproduced less than the tank with the traces of fuel (Tank A).
A. What is the above biologistâs hypothesis?
B. Which tank contains the control group?
C. Which tank contains the experimental group?
D. What is the experimental variable?
E. Does the data collected support the original hypothesis of the biologist? Why or why not?
F. What are two possible problems with this experiment, or sources of error?
BIOL 1014 Lab 1 Scientific Method (Continued) 3 - Crossword Contest Time to Solve Weekly
Crossword
| Puzzle Week | Bart (min) | Lisa (min) | Homer (min) |
| 1 | 15.00 | 5.00 | 35.00 |
| 2 | 20.00 | 3.00 | 42.00 |
| 3 | 18.00 | 5.00 | 45.00 |
| 4 | 15.00 | 4.00 | 40.00 |
| Average | 17.00 | 4.25 | 40.50 |
The Simpson family decided to have a crossword puzzle contest. (Maggie canât read and Marge is way too busy.) The Nuclear Meltdown Press has a weekly crossword in its Springfield edition. Each week, when the puzzle arrives, Bart, Lisa and Homer time themselves and record the time it takes for them to complete the puzzle.
A. Based on the data above, which Simpson is the fastest with crossword puzzles?
B. In this âexperimentâ what can you identify as the experimental variable?
C. What are two possible explanations for the differences observed between the subjects in this study?
D. What additional experiments could you recommend to better determine what may have caused these differences?
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