Teaching AWES Army Public School TGT Mock Test 2024 Mathematics Statistics Variance and Standard Deviation
In the formula for Z-test statistic \(\rm Z=\frac{\overline x-\mu_0}{\frac{\sigma}{\sqrt n}}\) mark the incorrect statement.
1
x̅ is sample mean
2
μ0 is population mean
3
n is sample size
4
σ is variance of the population