Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A researcher believes that parents of teenagers get less sleep than parents of newborns. Teenager parents: Mean = 6.8 hours; Variance = 2; N = 30 Newborn parents: Mean = 6.2 hours; Variance = 4; N = 30 1. Calculate the first required formula (round to 1 decimal). 2. Calculate the second required formula (round to 2 decimals). 3. What is your t-obtained? (round to 3 decimals). 4. What is your t-cv? (exact value). 5. Should you Reject or Retain the null hypothesis? Only type "Reject" or "Retain"