How to conclude that mean weight is less than nine grams

Reference no: EM13126620

A machine is set to fill a small bottlewith 9gram of a medicine. A sample of 8 bottles revealed the following amount (g) in each bottle.

9.2 - 8.7 - 8.6- 8.8 - 8.5- 8.7- 9.0

at the .01 sig level, can we conclude that the mean weight is less than 9 grams?

Reference no: EM13126620

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