. 1 mark Which of the followin statement is INCORRECT? The midpoint of a confidence interval is always the point estimate based on the sample. A confidence interval is used to estimate the unknown population parameter A 95% confidence interval means that there is 95% chance that the unknown value is inside the interval A confidence interval is a range of plausible values computed from the sample -. 1 mark The width of a confidence interval is NOT dependent on ' The point estimate calculated from the sample The confidence interval The standard error of the point estimate The sample size RECT? 3. 1 mark Which of the followin statement is INCORRECT? To make a more precise statement about the unknown population parameter, you can increase the sample size, For a given levels of confidence, a narrow one is more desirable than a wider one, because a more precise Narrow confidence interval and high levels of confidence are desirable Increasing the level of confidence results in an increase in the value of the point estimate