2. For a sample of 40 students, mean test score is 74 with standard deviation 20.2. Test at 5% significance level whethe
Posted: Wed May 11, 2022 9:54 am
2. For a sample of 40 students, mean test score is 74 with standard deviation 20.2. Test at 5% significance level whether the true mean score is different from 80. Show all steps.