The Net Weights of a Sample of Bottles Filled by a Machine

question 23

Multiple Choice

The net weights of a sample of bottles filled by a machine manufactured by Edne, and the net weights of a sample filled by a similar machine manufactured by Orno, Inc., are (in grams) :
Testing the claim at the 0.05 level the mean weight of the bottles filled by the Orno machine is greater than the mean weight of the bottles filled by the Edne machine, what is the critical value?

• A) -1.96
• B) -2.837
• C) -6.271
• D) +3.674
• E) None of these statements is correct

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