(Solved): After an improvement program, the score on a test of 80 students changed to a mean 76 from a histor ...

After an improvement program, the score on a test of 80 students changed to a mean 76 from a historical average of 74. The historical known standard deviation was 8. Can it be concluded that the improvement program CHANGED in any way the test score? Use a 5% significance level. 1 What is the value of the TEST STATISTIC? Note: Enter XXX.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 134.784 is entered as 134.78, 35.295 is entered as 35.30, .2749 is entered as 0.27, -.5650 is entered as -0.57 A After an improvement program, the score on a test of 80 students changed to a mean 76 from a historical average of 74. The historical known standard deviation was 8. Can it be concluded that the improvement program CHANGED in any way the test score? Use a 5% significance level. Enter the ALTERNATIVE HYPOTHESIS, HI number. Note: Enter INGEGER 1, 2 or 3, No decimal for selection: 1) H1: mean> 74 2) H1: mean < 74 Alter an improvement program, the score on a test of 80 students changed to a mean /6 from a historical average of 74. The historical known standard deviation was 8. Can it be concluded that the improvement program CHANGED in any way the test score? Use a 5% significance level. What is the P-VALUE from Table A2 for testing HO? See two entry formats below. Note: Two formats possible: 1) Enter LT01 if P-value is less than 0.01 2) Enter XXX.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 134.784 is entered as 134.78, 35.295 is entered as 35.30, .2749 is entered as 0.27, -.5650 is entered as -0.57 ? 1 After an improvement program, the score on a test of 80 students changed to a mean 76 from a historical average of 74. The historical known standard deviation was 8. Can it be concluded that the improvement program CHANGED in any way the test score? Use a 5% significance level. 1 What is the CONCLUSION for HO, assuming a 5% significance level? What is the CONCLUSION for HO, assuming a 5% significance level? REJ = Reject HO, assume H1 true. FTR Fail to Reject HO, assume HO true. = CBD Cannot be Determined. Note: Enter REJ, FTR or CBD letters. After an improvement program, the score on a test of 80 students changed to a mean 76 from a historical average of 74. The historical known standard deviation was 8. Can it be concluded that the improvement program CHANGED in any way the test score? I What is the CONCLUSION for H0, assuming a 1% significance level? REJ = Reject HO, assume H1 true. FTR Fail to Reject HO, assume HO true. = CBD Cannot be Determined. R =