Sample of n = 9: x-bar = 50, s = 6. Test H0: mu = 47 vs Ha: mu > 47.
The t statistic is:
- Acheck_circle
1.50
- B
0.50
- C
3.00
- D
0.33
Explanation
SE = 6/3 = 2. t = (50 - 47)/2 = 1.50.
Constructing a Confidence Interval for a Population Mean
AP Statistics· difficulty 2/5
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