Homework SourseConsider the statement New cars are expected to last an aver
Consider the statement, \"New cars are expected to last an average of at least three years before needing major service done to them.\" Which of the following is the null hypothesis?
The population mean <=3.
The population mean < 3.
The population mean > 3.
The population mean is >= 3.
Solution
The population mean is >= 3.
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