why do we use hypothesis testing why do i need to test population for normality what kind of data do i need to test for a population how to test a population why do you test a population what is the test for population what is the test to find out if the population is normal why test population what type of test is used to test for a population? can a population be tested in simple regression why do you need to test a population why do i need to test for the null hypothesis how to test for the validity of a population how can you test the population what is sample sample testing can you test for the normality of a population how to test the hypothesis of population when assessing population what test should be run why test for normal population what test can you do to confirm a population is normal and to exclude it from the sample