They are used to test hypothesis such as the mean is some value where you do not know if otherwise the mean is less or more.
The quantitative techniques are basic computations that are used in science. The two main categories are hypothesis tests and interval estimations.
A statistician may have some idea about some statistics in a data set, and there is a need to test whether or not that hypothesis is likely to be true. Data are collected and a test statistic is calculated. The value of this test statistic is used to determine the probability that the hypothesis is true.
The formal procedures used by statisticians to accept or reject hypotheses are primarily centered around hypothesis testing. This involves formulating a null hypothesis (H0) and an alternative hypothesis (H1), then using sample data to calculate a test statistic. The test statistic is compared against a critical value from a statistical distribution (like the normal or t-distribution) to determine a p-value. If the p-value is less than a predetermined significance level (often 0.05), the null hypothesis is rejected in favor of the alternative hypothesis.
experiment
The critical value is used to test a null hypothesis against an alternative hypothesis at some pre-defined level of significance. A test statistic is calculated from the outcomes of a set of trials and if this test statistic is more extreme than the critical value then the null hypothesis must be rejected in favour of the alternative.
They are used to test hypothesis such as the mean is some value where you do not know if otherwise the mean is less or more.
The quantitative techniques are basic computations that are used in science. The two main categories are hypothesis tests and interval estimations.
A controlled experiment is used to test a hypothesis.
A statistician may have some idea about some statistics in a data set, and there is a need to test whether or not that hypothesis is likely to be true. Data are collected and a test statistic is calculated. The value of this test statistic is used to determine the probability that the hypothesis is true.
What is a series of carefully planned steps that test a hypothesis?
used to test a hypothesis
A hypothesis test is used to make certain decisions based on the data collected.
A hypothesis is an "educated guess". An example of how it could be used: John needed to test his hypothesis about molecular degenaration.
Test your hypothesis by Doing an Experiment
the scientific method :)
experiment