in-a-study-measuring-stress-levels-before-and-after-yoga-sessions-researchers-pl

Question

In a study measuring stress levels before and after yoga sessions, researchers plan a left-tailed test using a dependent sample of 1212 participants. What is the critical tt-value at the 0.050.05 significance level, and what is the rejection region?

Accepted Answer

Critical value =–1.796= –1.796, reject if t−1.796t

Answer

Critical value =±1.796= ±1.796, reject if  1.796"\u003e∣t∣\u003e1.796|t| \u003e 1.796

Answer

Critical value =–2.201= –2.201, reject if t−2.201 t

Answer

Critical value =1.976=1.976, reject if 1.976"\u003et\u003e1.976t\u003e1.976