Question: An oceanographer believes that the median height of the waves at Ocean city is 2.8 ft.  The wave heights (in feet) are measured for a random sample of 20 days.  The data are shown here.  Significance level=.05.  Is there enough evidence to reject the oceanographer’s claim?

3.6       2.1       2.3       2.1       2.7

3.2       3.9       3.4       3.0       2.9

2.0       1.9       3.2       3.5       2.8

1.8       2.3       3.7       3.9       4.2

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