In the formula for confidence interval; CI = X ± Z(s/√n)
what is Z95% ?
Answer:
>> Z95% means critical z value for 95% Confidence level.
>> Z95% = 1.96
Step-by-step explanation:
The formula for confidence interval is given as;
CI = x¯ ± Z(s/√n)
Where:
x¯ is the mean
Z is the critical value for a particular %CL
s is standard deviation
n is sample size
Thus, Z95% means critical z value for 95% Confidence level.
From tables, the z-value for a confidence level of 95% is 1.96
