Mathematics, 06.05.2020 02:00 sethhdoty
The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and a standard deviation of $2,000. The ship building association wishes to find out whether their welders earn more or less than $50,000 annually. The alternate hypothesis is that the mean is not $50,000. Which of the following is the alternate hypothesis?A. H1: ? ? $50,000.
B. H1: ? < $50,000.
C. H1: ? ? $50,000.
D. H1: ? = $50,000.
Answers: 1
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