92 2 can just barely reject h at the 2 level of

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Since the P-value =1.92% < 2% can just barely reject H0at the 2% level of significance. 14.H0: µ = 250 ml HA: µ 250 ml tcrit= 3.355, Rule: Reject H0if ttest< 3.355 or > 3.355 ttest= −ͳ.Ͷͺ1.48 is between 3.355 and 3.355 (or 1.48 is notin the rejection region)→ No, cannotreject H0at the 1% level. No, the results donotindicate that the filling machine needs an adjustment. (b) Two tails0.20 ?0.10 The P-valueis between 10% and 20% 8 df1.397 1.481.860 15.H0: p = 25% HA: p < 25% zcrit= 2.326 (or 2.33) Rule: Reject H0if ztest< 2.326 ztest= 2.58 < −2.33 →Yes, canreject H0at the 1% level. Yes, there is enough evidence to conclude that the program has reduced the proportion of tax returns containing errors. (b) P-value = 0.49% which is smaller than 1% so can reject H0at the 1% level
2.58

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