1 v/s 3 months

1 v/s 6 months

1 v/s12 months

3 v/s 6 months

3 v/s 12 months

6 v/s 12 months

Z value for difference in mean for 5 year period

P (Z <= z) one-tail

0.486365

0.471146

0.444333

0.484797

0.457901

0.472976

z Critical one-tail

1.644854

1.644854

1.644854

1.644854

1.644854

1.644854

P (Z <= z) two-tail

0.97273

0.942293

0.888665

0.969595

0.915802

0.945951

z Critical two-tail

1.959964

1.959964

1.959964

1.959964

1.959964

1.959964

Z value for difference in median for 5 year period

P (Z <= z) one-tail

0.484322

0.476576

0.442685

0.492345

0.458326

0.465706

z Critical one-tail

1.644854

1.644854

1.644854

1.644854

1.644854

1.644854

P (Z <= z) two-tail

0.968645

0.953153

0.885371

0.984691

0.916653

0.931412

z Critical two-tail

1.959964

1.959964

1.959964

1.959964

1.959964

1.959964