The correct answer is D. To determine if there is a significant difference or effect.
Hypothesis testing is a statistical method used to determine whether there is a significant difference between two groups or whether there is a significant effect of a treatment. It is used in a variety of fields, including science, medicine, and business.
The hypothesis testing process begins with the development of a hypothesis, which is a statement about the relationship between two variables. The hypothesis is then tested by collecting data and calculating a test statistic. The test statistic is then compared to a critical value, which is a value that indicates the probability of obtaining the observed results if the null hypothesis is true. If the test statistic is greater than the critical value, then the null hypothesis is rejected and the alternative hypothesis is accepted. This means that there is a significant difference between the two groups or that there is a significant effect of the treatment.
Option A is incorrect because the primary goal of hypothesis testing is not to visualize data. Hypothesis testing is used to determine whether there is a significant difference or effect, not to visualize data.
Option B is incorrect because the primary goal of hypothesis testing is not to summarize data. Hypothesis testing is used to determine whether there is a significant difference or effect, not to summarize data.
Option C is incorrect because the primary goal of hypothesis testing is not to build predictive models. Hypothesis testing is used to determine whether there is a significant difference or effect, not to build predictive models.