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Questions and Answers
Which significance level is being used in the test?
Which significance level is being used in the test?
- 1%
- 20%
- 10%
- 5% (correct)
What is the average duration of life for the 9 randomly selected batteries?
What is the average duration of life for the 9 randomly selected batteries?
- 50 months
- 60 months
- 55 months (correct)
- 45 months
What is the standard deviation of the 9 randomly selected batteries' life durations?
What is the standard deviation of the 9 randomly selected batteries' life durations?
- 5 months
- 15 months
- 20 months
- 10 months (correct)
