Question: I It is claimed that the current input to a television tube needed to achieve a specied brightness is at least 800 rnicroamperes. A sample

I It is claimed that the current input to a television

I It is claimed that the current input to a television tube needed to achieve a specied brightness is at least 800 rnicroamperes. A sample of 20 picture tubes is tested and the current needed to achieve the brightness is measured. The data yield f = 750, s = 10. A possible appropriate test statistic would be: ?50 300 $50 300 $50 300 50 300 A) 20 = W (B)ZD = T (CH0 = 10 (D) to = W (E)Noneofthese

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