The two tailed critical value is ±1.55
It depends on whether the interval is one sided or two sided. The critical value for a 2-sided interval is 1.75
The Z-value for a one-sided 91% confidence interval is 1.34
1.96
1.15
Pr{z<=1.0805}~=0.86
It depends on whether the interval is one sided or two sided. The critical value for a 2-sided interval is 1.75
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
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
Pr{z<=1.0805}~=0.86
1.75
1.31
2.326 (one sided) or 2.578 (two sided)