CHANGING THE CONFIDENCE LEVEL OR SAMPLE SIZE Increasing the confidence level _______ the error bound, making the confidence interval _______ . Decreasing he confidence level _______ the error bound, making the confidence interval _______ . Increasing the sample size causes the error bound to _______ , making the confidence interval _______ . Decreasing the sample size causes the error bound to _______ , making the confidence interval _______ .
1) increases, wider
2) decreases, narrower
3) increases, narrower
4) decreases, wider
