2.326 (one sided) or 2.578 (two sided)
The Z-value for a one-sided 91% confidence interval is 1.34
1.96
1.15
The two tailed critical value is ±1.55
Pr{z<=1.0805}~=0.86
The Z-value for a one-sided 91% confidence interval is 1.34
For a two-tailed interval, they are -1.645 to 1.645
1.96
1.15
ss
The two tailed critical value is ±1.55
Statistical estimates cannot be exact: there is a degree of uncertainty associated with any statistical estimate. A confidence interval is a range such that the estimated value belongs to the confidence interval with the stated probability.
Pr{z<=1.0805}~=0.86
The critical value of z for a 96 percent confidence interval is approximately 2.05. This value corresponds to the point where the area in each tail of the standard normal distribution is 2 percent, leaving 96 percent in the center. It is typically found using z-tables or statistical software.
1.96
It depends on whether the interval is one sided or two sided. The critical value for a 2-sided interval is 1.75
The answer will depend on whether the interval is one-sided or two-sided; and if two-sided, whether it is symmetrical.For a symmetrical two-sided confidence interval, the Z value is 0.974114The answer will depend on whether the interval is one-sided or two-sided; and if two-sided, whether it is symmetrical.For a symmetrical two-sided confidence interval, the Z value is 0.974114The answer will depend on whether the interval is one-sided or two-sided; and if two-sided, whether it is symmetrical.For a symmetrical two-sided confidence interval, the Z value is 0.974114The answer will depend on whether the interval is one-sided or two-sided; and if two-sided, whether it is symmetrical.For a symmetrical two-sided confidence interval, the Z value is 0.974114