Calculate Variance of P-Hat

Calculate the Z-score

Calculate Za/2

Reject or Fail to Reject based on findings

\f\f\f\f4: In column D of the MLB tab, use the IF function to create a 0/1 variable equal to 1 if the 2020 ERA 0.45 Calculate the Variance of P-Hat here => Calculate your Z-Score here => Using "NORM.S.INV" calculate Zo/2 = State your conclusion here =>A B C D E F G 2020 ERA