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The yield of wheat from 8 test plots is as follow: 1.2, 2.2, 1.9, 1.1, 1.8,...

The yield of wheat from 8 test plots is as follow:

1.2, 2.2, 1.9, 1.1, 1.8, 1.4, 1.6, 2.1 ( tons per acre)

The standard deviation of this type of wheat production is known to be 0.38 tons per acre. Construct a 95% CI for this set of data. Does the data verify the Gov. claim that this strain of wheat produces more than 1.5 tons per acre?
Math   Statistics-And-Probability   
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