6. 3/4 points | Previous Answers DevoreStat9 10.E.022. My Notes Ask Your T The f

Question

6. 3/4 points | Previous Answers DevoreStat9 10.E.022. My Notes Ask Your T The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use j 1, 2, 3, and 4 respectively.) 1.6: 59.2 53.5 56.4 63.9 58.5 3.8: 55.4 59.5 52.2 54.5 6.0 51.9 48.3 53.4 49.3 10.2: 44.7 48.7 41.1 47.2 46.1 Use the F test at level 0.05 to test for any differences in true average yield due to the different salinity levels. State the appropriate hypotheses. Ha: at least two 's are equal Ha: at least two 's are unequal Ha: all four 's are equal Ha: all four s are unequal Calculate the test statistic. (Round your answer to two decimal places.) f= 17.4 What can be said about the P-value for the test? P-value0.100 0.050

Explanation / Answer

F = 15.55

Mean n Std. Dev 58.30 5 3.836 1.6: 55.40 4 3.047 3.8: 50.73 4 2.341 6.0: 45.56 5 2.893 10.2: 52.43 18 5.900 Total

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