Recent content by JPenny20

  1. J

    Thesis Help Request - Hypothesis Testing

    A typical market model is used. Is it still possible to comment on the sign of the CAAR value or would it be incorrect practice to do so? A large number of previous papers use a two sided test but comment on directional values CAAR. E.g. CAAR significantly different from 0 and 1.5% gain seen...
  2. J

    Thesis Help Request - Hypothesis Testing

    Hi I am doing an event study and my null hypothesis is CAAR=0 and alternative is CAAR does not equal 0 (2 tailed t-test). CAAR is cumulative average abnormal returns. Can a two tailed test be used to give directional conclusions, e.g. if the CAAR value is 1.5% and is statistically significant at...