What is the point estimate for the population mean? Create a 95% confidence interval for the population mean. Show all your work below. Say that the sample size changes to n=100. Compute a 95% confidence interval with the same point estimate. How does the Margin of Error for the 95% confidence interval of sample size 50 compare to the margin of error for the 95% confidence interval of sample size 100? Create a 90% confidence interval for the original 50 students. How does the margin of error for the 95% confidence interval that you computed in question 8 compare to the margin of error for the 90% confidence interval that you computed in question 11? The BYU-I professor would like to repeat the experiment, but he wants to make sure he has enough students in his sample to ensure that his Margin of Error is 5. How many students will need to be in his sample to ensure he has this level of accuracy for a 95% confidence interval?
What is the point estimate for the population mean? Create a 95% confidence interval for the population mean. Show all your work below. Say that the sample size changes to n=100. Compute a 95% confidence interval with the same point estimate. How does the Margin of Error for the 95% confidence interval of sample size 50 compare to the margin of error for the 95% confidence interval of sample size 100? Create a 90% confidence interval for the original 50 students. How does the margin of error for the 95% confidence interval that you computed in question 8 compare to the margin of error for the 90% confidence interval that you computed in question 11? The BYU-I professor would like to repeat the experiment, but he wants to make sure he has enough students in his sample to ensure that his Margin of Error is 5. How many students will need to be in his sample to ensure he has this level of accuracy for a 95% confidence interval?
10_Preparation_Assignment_A.docx