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(20.18) You are testing H 0 : = 100 against H a : < 100 based on an SRS of 22 observations from a Normal

(20.18) You are testingH₀:= 100 againstH_a:< 100 based on an SRS of 22 observations from a Normal population. The data givex

x= 9.1ands= 2.9.

The value of thetstatistic (0.01) is

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