All experiments must be replicable to effectively deal with variation. Replicati

Question

All experiments must be replicable to effectively deal with variation. Replications are created of each treatment under identical conditions. When appropriate for the it is typically best to reach at least a statistically significant large sample size (n = 30) .he data is collected, put through statistical analysis, and compared to the predictions. After variables have been determined, to collect data, a method of measurement of the effect needs to be determined. Measurements may be collected as qualitative (categorical data) or as quantitative data (numerical data). It is also important to consider the scale of units for each treatment, to minimize the efficiency of data collection. The internationally adopted system of measurement (numerical data) is the metric system. By using one measurement system it facilitates the comparison of results. The data is now collected, put through statistical analysis, and compared to the predictions. Using the scenario below, what type of data is more appropriate to use. Explain your reasoning. Blackworms, Lumbriculus variegatus, is a group of freshwater oligochaete worms (related to earthworms and leeches). Blackworms have a large dorsal blood vessel that is easy to observe under a microscope. Design and conduct an experiment that tests the effect of chemical exposure on the cardiovascular system of the blackworms. Using the scenario below, what type of data is more appropriate to use. Explain your reasoning. The house cricket, Gryllus domesticus, like many social animals, have structure dominance hierarchies, which is based on the individuals' strength and influence over other crickets. Design and conduct an experiment where you test the benefits and costs to these individuals

Explanation / Answer

A. Using the scenario given, quantitative data is more appropriate to use. The reason behind this is when effects of chemical exposure is observed on cardiovascular activity then the results depend on the quantity and concentration of the chemical being used. Different results are observed with different exposures.

B. Using the scenario given, qualitative data is more appropriate to use. The reason behind this is that we are studying one of the behavioral aspects of cricket. This means that we need to formulate a hypothesis and test it. Whether the hypothesis is proved or nullified the information needed to be used would be categorical.

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