the seller of Starbucks coffee would like to test the labele

the seller of Starbucks coffee would like to test the labeled net weight: 2.7 lb. He collected sample of bags with weights list on the left. It is known that the standard deviation of the weight is 0.7. The his test, he allows error with level of significance 5%.
Question: is the labeled weight correct?

n=36

3.15
2.76
3.18
2.77
2.86
2.66
2.86
2.54
3.02
3.13
2.94
2.74
2.84
2.60
2.94
2.93
3.18
2.95
2.86
2.91
2.96
3.14
2.65
2.77
2.96
3.10
2.82
3.05
2.94
2.82
3.21
3.11
2.90
3.05
2.93
2.89

Test of mu = 2.7 vs not = 2.7
The assumed standard deviation = 0.7

Variable N Mean StDev SE Mean 95% CI Z P
C1 36 2.920 0.170 0.117 (2.691, 3.149) 1.89 0.059

the seller of Starbucks coffee would like to test the labeled net weight: 2.7 lb. He collected sample of bags with weights list on the left. It is known that th

the seller of Starbucks coffee would like to test the labele

Solution

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