Using the regression table I created, how should I perform the F-Test at 0.05 level of significance and T-Test? How do I arrive at a decision after this?
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Using the regression table I created, how should I perform the F-Test at 0.05 level of significance and T-Test? How do I arrive at a decision after this?
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- Source Treatment Fill in the missing entries in the partially completed one-way ANOVA table. df MS = SS/df F-statistic 4.7 Error 13 15 0.6 Total Source df SS MS = SS/df F-statistic Treatment 4.7 Error 13 06 Total 15 (Round the F-statistic to two decimal places as needed. Round the SS values to one decimal place as needed.)A college trying to determine if there is a significant difference in the mean GMAT score of students from different undergraduate backgrounds who apply to MBA program. The Excel file GMAT scores contains data from a sample of students. What conclusion can be reach using ANOVA? What is the correct p-value (to two decimals) of this ANOVA? (Enter 0.00 if the value is smaller than that). Business Liberal Arts Sciences 575 562 601 590 578 600 585 584 584 588 570 593 579 565 602 593 572 587 570 573 592 565 597 598 604 605 580 590 610 572 590 583 594 610 589 612 588 586A special bumper was installed on selected vehicles in a large fleet. The dollar cost of body repairs was recorded for all vehicles that were involved in accidents over a 1-year period. Those with the special bumper are the test group and the other vehicles are the control group, shown below. Each "repair incident" is defined as an invoice (which might include more than one separate type of damage). Statistic Test Group Control Group Mean Damage X⎯⎯⎯1X¯1 = $ 1,188 X⎯⎯⎯2X¯2 = $ 1,792 Sample Std. Dev. s1 = $ 712 s2 = $ 800 Repair Incidents n1 = 16 n2 = 14 Source: Unpublished study by Thomas W. Lauer and Floyd G. Willoughby. (a) Construct a 95 percent confidence interval for the true difference of the means assuming equal variances. (Round your final answers to 3 decimal places. Negative values should be indicated by a minus sign.) The 95% confidence interval is from to (b) Repeat part (a), using the assumption of unequal variances with Welch's…
- Sharon wants to measure the effect of training and high/low protein diet on muscle recovery after exercise. There are 4 groups of participants: trained high protein diet, untrained low protein diet, trained low protein diet, untrained high protein diet. What statistical test should be used to determine the mean differences between groups in muscle recovery? 2-way/factorial ANOVA 1-way ANOVA Repeated Measures ANOVA Chi-square TestA special bumper was installed on selected vehicles in a large fleet. The dollar cost of body repairs was recorded for all vehicles that were involved in accidents over a 1-year period. Those with the special bumper are the test group and the other vehicles are the control group, shown below. Each "repair incident" is defined as an invoice (which might include more than one separate type of damage). Statistic Test Group Control Group Mean Damage X⎯⎯⎯1X¯1 = $ 1,245 X⎯⎯⎯2X¯2 = $ 1,790 Sample Std. Dev. s1 = $ 721 s2 = $ 835 Repair Incidents n1 = 17 n2 = 14 Source: Unpublished study by Thomas W. Lauer and Floyd G. Willoughby. (a) Construct a 99 percent confidence interval for the true difference of the means assuming equal variances. (Round your final answers to 3 decimal places. Negative values should be indicated by a minus sign.) The 99% confidence interval is from to (b) Repeat part (a), using the assumption of unequal variances with Welch's…Define sampling variability?
- Manny insurancce comppanies are beginning to question the policy of offering reduced rates to owners of subcompact cars beccause the rate of serious and fatal accidents of subcompact cars is higher than that of larger-sized cars (compact cars and full size cars). To innvestigate this issue, a researcher made an analysis of accident data to determine the distribution of numbers of cases in whichh at least one individual was either fatally or critically injured for autommobiles of three sizzes. The data for 346 accidents are shown below. Do the data indicate the frequency of fatal or critical injuries in auto accidents depends on the size of automobiles? Assume α = 5%. Size of Automobiles Total Result Subcompact Compact Full Size Fatal or critical injury 67 26 16 No fatal or critical injury 128 63 46 Total 1. Write down your null and alternative hypotheses that can be used to test whether the frequency of fatal…2. uestion A scatter diagram cannot be created for more than 100 data values. True O False 3.Where are the deer? Random samples of squarekilometer plots were taken in different ecologicallocations of Mesa Verde National Park. The deercount per square kilometer was recorded and isshown below.Mountain 30, 29, 20, 29Brush Sagebrush 20, 58, 18, 22Grassland Pinon 5, 18, 4, 9JuniperDoes the data provide sufficient evidence that there isa difference among the mean deer per squarekilometer in these different ecological regions? Use a5% significance level. What kind of problem is this and how would it be done using a ti83 calculator