Question

3 Use Statistix to conduct an Analysis of Variance (One-Way AOV) for your data set. Compare the mean prices for the three levels of your QL variable. Don't forget to restore the first level of your qualitative variable that you omitted in problem #2 before conducting this test. You should also create the printout for conducting the Bonferroni follow-up analysis. Attach these printouts here and answer the following questions. One-Way AOv for Price by Location DF SS MS P Source F 0.0006 Location 1.602E+11 8.009E+10 8.21 7.025E+11 8.627E+11 72 9.758E+09 Error Total 74 Grand Mean 264024 CV 37.41 Bonferroni All- Pairwise Comparisons Test of Price by Location Location Мean Homogeneous Groups 320940 263387 207745 2 A 1 АВ 3 Alpha Critical T Value rror for Comparison Critical Value for Comparison 0. Standard 27939 68485 2.451 There are 2 groups (A and B) in which the means are not significantly different from one another. State the appropriate hypotheses that you wish to test. (4 points) a. Но: На: b. Use the p-value shown on your printout to state the appropriate conclusion in the words of the problem. You should choose the a to test at. (4 points) Using the Bonferroni results shown on the printout, identify how your three means differed. If no differences can be detected, tell me why. Make sure you include your reliability level and state any differences in the words of the problem. (4 points) с.

Answer 1

equal Ho Mean prices for three levels are a. price is different from others Ha At least one mnean b. Level of significance Since p-value = 0.0006 < 0.05, there is sufficient evidence that at least one mean c. There are two groups (Location 2 and Location 3) each others since 320940-207745 dif ferent from each others 0.05 _ reject Ho at level 0.05 and conclude that price is different from others. significantly di fferent from insignificantly So we are 113195> 68485. Other pairs are