9.2 \(P\)-values

In a two-tailed \(t\)-test where \(n=49\), what is the approximate \(P\)-value for the test (Hint: Use the 68–95–99.7 rule) if:

  1. \(t=-2.14\).
  2. \(t=1.90\).
  3. \(t=3.15\).
  4. \(t=-1.20\).
  5. \(t=-1.59\).
  6. \(t=6.71\).

How would your answers change if these \(t\)-scores came from a one-tailed test?


Free Online Poll Maker