Question

Select the correct answer from each drop-down menu.

A researcher is examining the claims made by water softener salt manufacturer. He performs an experiment using water from a variety of sources. For
each water source, he has a sample with no treatment and a sample treated with the recommended amount of the water softener salt.
He then tests each sample to measure the softness and compares the results, determining that the claims made by the manufacturer are true.
The conclusion drawn from the study is v because the sample is MEY In this instance, an
v study was
performed.

Answer 1

The question involves a scientific experiment where a control group of untreated water is compared with an experimental group treated with water softener salt, to test the manufacturer's claims, following the scientific method. This falls under the Science category and is suitable for high school level studies.

Step-by-step explanation:

The subject of this question falls under the category of as it pertains to the process of conducting an experiment to test the efficacy of a water softener salt and involves measuring and comparing the variables and the control to come to a conclusion based on empirical data.

The experiment referenced in the question compares a (water with no treatment) to an experimental group (water treated with water softener salt) and measures the softness to determine if the manufacturer's claims are true. This is analogous to testing hypotheses in other scientific fields, such as pharmaceuticals, where an experimental group receives a drug and a control group does not, to see if there is a statistically significant impact on treating an illness.

Since the researcher uses water from various sources and includes both treated and untreated samples as part of the process, this study can be classified as a controlled By analyzing the results and concluding that the claims made regarding water softener salt are substantiated, the researcher is following the scientific method to test a hypothesis.