Questions: In an experiment to determine if a new type of fertilizer is better than the current "standard" fertilizer for growing corn, 20 plots of land were randomly assigned one of the two types. At the end of the growing season, the corn yields for each plot were measured. It was found that plots located closer to the highway had smaller yields than other plots. In this experiment, distance from the highway is:

In an experiment to determine if a new type of fertilizer is better than the current "standard" fertilizer for growing corn, 20 plots of land were randomly assigned one of the two types. At the end of the growing season, the corn yields for each plot were measured. It was found that plots located closer to the highway had smaller yields than other plots. In this experiment, distance from the highway is:
Transcript text: In an experiment to determine if a new type of fertilizer is better than the current "standard" fertilizer for growing corn, 20 plots of land were randomly assigned one of the two types. At the end of the growing season, the corn yields for each plot were measured. It was found that plots located closer to the highway had smaller yields than other plots. In this experiment, distance from the highway is:
failed

Solution

failed
failed

In this experiment, distance from the highway is a confounding variable.

Explanation:

  • A confounding variable is an external factor that can affect the results of an experiment, potentially leading to incorrect conclusions about the relationship between the variables being studied. In this case, the distance from the highway is affecting the corn yields, which could interfere with the assessment of the effectiveness of the new fertilizer compared to the standard one.
  • The experiment aims to compare the effectiveness of two types of fertilizers on corn yield. However, the proximity to the highway is influencing the yield, which means it could confound the results by introducing an additional variable that was not controlled for in the experiment design.
  • To accurately determine the effect of the fertilizers, the experiment should control for the distance from the highway, or at least account for its impact in the analysis, to ensure that any differences in yield are due to the fertilizer type and not the location of the plots.
Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
Write a program whose inputs are three integers, and whose output is the smallest of the three values. Ex: If the input is: 715 3 the output is: 3
failedAnswered
Which of the following is an example of how survey data may be unreliable? A. The survey sample size was too large. B. The survey included participants from diverse backgrounds. C. The survey questions were biased or leading. D. The survey was conducted anonymously.
failedAnswered
What is the mode? 1 1 1 0 4 4
failedAnswered
Here is a data set: 43, 23, 38, 55, 32 54, 38, 37, 34, 48 23, 32, 45, 30, 21 38, 51, 22, 29, 35 36, 40, 31, 35, 36 20, 27, 30, 48, 20 Use the data to complete the last row of the stem-and-leaf plot below. Enter your answers as a list separated by commas. Stem Leaf 2 00123379 3 00122455667888 4 03588 5 Key: 2 5=25
failedAnswered
25. Game-Optional. Play the game below on the grid that appears on the following page. The first player places a piece in any of the spaces. The second player may play in any space, but if the second player places a piece next to one that is on the board, it must be different from that piece in two ways. Can you fill up the board? To make this game competitive, you may divide the pieces at random and require each player to draw from his or her own group of pieces. To further increase the challenge, play with only the large pieces or the small pieces. Make up some new rules for the game. For example, you may vary the number of differences required.