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It calculates the difference between each set of pairs, and analyzes that list of differences. The P value answersthis question: If the median difference in the ... If your samples are small and there are no tied ranks, Prism calculates an ... The whole point of using a paired test is to control for experimental.

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Control samples are used as a baseline reference to compare with the experimental samples, which are subjected to a specific treatment or condition. Control samples help to account for variability and ensure that any observed changes in the experimental samples are due to the treatment being tested. Experimental samples are used to investigate the impact of a particular variable or treatment on the system being studied.

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Q: What is the difference between control samples and test experimental samples?
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Why is water used as the control sample?

Water is often used as a control sample because it is a neutral substance that does not interfere with the experiment. By comparing the results from the experimental samples to the control sample of water, researchers can more accurately determine the effects of the variables being tested. Additionally, water is readily available, inexpensive, and easily controlled for consistency.


Definition of independent sample.?

Independent samples are a set of observations or data points that are not influenced by or related to each other. Each sample is collected without affecting or being affected by the other samples, allowing for statistical analysis to make conclusions about a broader population. This lack of relationship between the samples is important for ensuring the validity of statistical tests and analyses.


How do you tell if two samples are signficantly different?

Statistical tests like t-tests or ANOVA can be used to determine if two samples are significantly different. These tests compare means of the samples, account for sample size, and calculate a p-value to determine if the difference is significant. A p-value below a chosen significance level (commonly 0.05) indicates that the samples are significantly different.


What is the difference between a mixed culture and a contaminated culture?

A mixed culture contains multiple known strains of microorganisms intentionally combined for specific purposes, while a contaminated culture has unwanted or unintended microorganisms present. Mixed cultures are intentionally created for research or industrial applications, while contaminated cultures are unintentionally contaminated and can compromise experimental results.


Which statements is probably true about the experiments that supposedly proved that spontaneous generation occurs?

The experiments that supposedly proved spontaneous generation likely lacked proper controls, used contaminated samples, or made incorrect conclusions. Inaccuracies in the experimental setup or interpretation undermine the validity of the results suggesting spontaneous generation. It is important to critically evaluate the experimental design and methodology to establish the credibility of such claims.