Question: Consider the following computer output. (a) Fill in the missing values. You may use bounds for the P-value. (b) Is this a two-sided test or

Consider the following computer output.

Two-Sample T-Test and Cl Sample SE Mean Mean StDev 20 11.87 2.23 12.73 20 3.19 0.71 Difference = mu (1)-mu (2) Estimate

(a) Fill in the missing values. You may use bounds for the P-value.

(b) Is this a two-sided test or a one-sided test?

(c) What are your conclusions if α = 0.05? What if α = 0.10?

Two-Sample T-Test and Cl Sample SE Mean Mean StDev 20 11.87 2.23 12.73 20 3.19 0.71 Difference = mu (1)-mu (2) Estimate for difference: -0.860 95% CI for difference: (?, ?) T-Test of difference = 0 (vs not =) : T-Value = ? P-Value = ? DF = ? Both use Pooled StDev = ?

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