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What type of data do you collect during an experiment?
Experimental data. Information about what conditions are present when measured or observed.
What is the experimental probability of rolling a 4 in the trial shown?
To determine the experimental probability of rolling a 4, you need to divide the number of times a 4 was rolled by the total number of rolls conducted in the trial. For example, if a 4 was rolled 3 times out of 20 rolls, the experimental probability would be 3/20, or 0.15. This probability reflects the observed outcomes based on the specific trial conducted.
How is null hypothesis used in experimental design?
In experimental design, the null hypothesis serves as a foundational statement that posits no effect or no difference between groups or conditions. It provides a baseline against which researchers can compare their experimental results. By testing the null hypothesis, researchers can determine whether observed effects are statistically significant or could have occurred by chance. If the null hypothesis is rejected, it suggests that there is enough evidence to support an alternative hypothesis.
What two important probability principles were established in this exercise coin toss?
In the exercise of tossing a coin, two important probability principles are highlighted: the Law of Large Numbers and the concept of independence. The Law of Large Numbers states that as the number of trials increases, the experimental probability (the ratio of heads or tails observed) will converge to the theoretical probability (50% for a fair coin). Additionally, the independence principle asserts that the outcome of each coin toss does not affect the outcome of subsequent tosses, meaning each flip remains a separate event with the same probabilities.
How can you measure kn?
To measure ( k_n ), you can use various mathematical or experimental techniques depending on the context. For instance, if ( k_n ) represents a constant in a mathematical model, you can derive it from the relevant equations or data fitting. In an experimental setting, you can collect data points and apply statistical methods to estimate ( k_n ). Additionally, using tools such as regression analysis can help quantify ( k_n ) based on observed relationships.
What experimenter variable is used to measure manipulation?
Experimenter variables are characteristics of the researcher that can influence the study outcomes, but are not typically used to measure manipulation in an experiment. Instead, manipulation is typically measured by the observed changes in the dependent variable(s) resulting from the experimental treatment or condition.
Kevin recorded the effects of violent video games on antisocial behavior. Which of these is a response variable?
Variables of interest in an experiment (those that are measured or observed) are called response or dependent variables. Other variables in the experiment that affect the response and can be set or measured by the experimenter are called predictor, explanatory, or independent variables. Antisocial behavior
Ann recorded the effects of watching television on physical fitness. Which of these is a response variable?
Variables of interest in an experiment (those that are measured or observed) are called response or dependent variables. Other variables in the experiment that affect the response and can be set or measured by the experimenter are called predictor, explanatory, or independent variables.Variable - not consistent or having a fixed pattern; liable to changePhysical fitness
Match the experimental conditions applied to the photoelectric effect observed.?
conditions of photoelectric effect
Why is replication important in experimental?
Observed results are less likely to be affected by random chance.
Why is replication in experimental design?
Observed results are less likely to be affected by random chance.
What are synonyms for empirical?
first-hand, direct, observed, practical, actual, experimental, pragmatic, factual
Why is replication important and experimental design?
Observed results are less likely to be affected by random chance.
Which of these mechanisms is consistent with the observed rate law?
The mechanism that is consistent with the observed rate law is the one that matches the experimental data and mathematical expression for the rate of the reaction.
Who discovered electroluminescence?
yeast
What type of data do you collect during an experiment?
Experimental data. Information about what conditions are present when measured or observed.
What constitutes a science?
When observation is present and various experimental techniques are employed to determine the cause of what's observed.
