Please solve Statistics

Question 25 (2 points) A company CEO wonders if the performance evaluation scores given by her 4 managers are different. The CEO collects a random sample of numerical averages for 10 employees under each manager, and uses the AOVONEWAY procedure from Minitab. The output from this procedure is reproduced below. ANALYSIS OF VARIANCE SOURCE DF SS MS F P FACTOR 3 675.000 225.000 3.208 0.034 ERROR 36 2525.000 70.139 TOTAL 39 3200.000 The decision that the CEO would make, at the 5% significance level, is that there is O a difference in the means, since 0.05 0.034. no difference in the means, since 0.025 o-2, one would calculate the F-ratio as s'| divided by $ 2. O True FalseQuestion 14 (2 points) A manager is interested in determining how 4 different training methods impact employee productivity. The manager selects 10 workers and sends each to 1 of the 4 training programs. She wishes to test whether average productivity differs among the training programs. The increase in productivity for each worker related to the specific training program is given in the table below: Training Training Training Training Method 1 Method 2 Method 3 Method 4 20 28 5 22 12 30 17 18 11 Anova: Single Factor SUMMARY Groups Count Training Method Blank Anova Table Method 1 W W Method 2 10 Method 3 58 29 Method 4 NJ 22 11 72 ANOVA Source of Variation SS MS F Between Groups Within Groups Total What is the grand mean for these data? O 20.0 O 19.7 O 17.0 O 15.4 SaveQuestion 27 (2 points) Refer to the information provided above. What are the degress of freedom for this test? Save Question 28 (2 points) Refer to the information provided above. Report the test statistic for this test. Save Question 29 (2 points) Refer to the information provided above. Can you or can you not reject Ho and at what significance level? SaveQuestion 13 (1 point) A control factor may be added to an ANOVA model to help to isolate the variation in the dependent variable caused by experimental factors already included in the model. O True O False BABSQuestion 18 (3 points) Refer to the previous problem. What are the degrees of freedom for the hypothesis that average productivity for each training method is equal? O 3 for numerator, 9 for denominator 6 for numerator, 3 for denominator O 3 for numerator, 6 for denominator 6 for numerator, 9 for denominator Save Question 19 (3 points) Refer to the previous problem. What is the p-value for the hypothesis test? Be as specific as the tables will allow. O greater than 0.05 O between 0.01 and 0.05 O less than 0.01 O Save Question 20 (2 points) Refer to the previous problem. In testing the hypothesis that average productivity for each training method is equal with a = 0.05, we will O reject Ho, since F>4.76. O reject Ho, since F4.76. O accept Ho, since F