Question

In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval.Open Brain data. SETUP: It is believed that the heavier the person (i.e. larger weight) the larger the brain volume should be. Given the data your job is to confirm or disprove this assertion.1. What test/procedure did you perform?a. One-sided t-testb. Two-sided t-testc. Regressiond. Confidence interval

Answer 1

i use the two sided t-test.

Explanation:

it would be nearly impossible to ascertain with certain the proposition above but we would rather guess using the parameters that were available at the time.

generally in statistics, we use a two sided t-test when an area of a distribution is two-sided and tests whether a particular given sample in question is greater than or less than a exact range of values.

the two sided t-test is mostly used in null-hypothesis testing and testing for statistical significance.