A random sample of 36 bags has a mean weight of 49.4 lb with s = 1.8 lb. Test H0: mu = 50 vs Ha: mu < 50.
What is the value of the t test statistic?
- A
-0.33
- Bcheck_circle
-2.00
- C
-3.33
- D
-0.60
Explanation
t = (49.4 - 50)/(1.8/sqrt(36)) = -0.6/0.30 = -2.00.