Answer Happy

1 Final 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 113 62 56 67 88 72 86 72 85 80 65 93 82 88 66 70 70 67 95 54 51 58 79 82 50 109 85 22 74 74 46 118 49 84 48 Math 113 61 90 67 86 60 56 73 68 93 113 43 56 56 67 71 73 71 74 31 74 104 48 70 38 65 77 36 71 113 58 116 69 43 84 Hours 2 2 3 5 2 3 1 1 4 1 3 2 2 2 4 5 5 4 2 1 2 3 5 2 4 2 4 1 3 3 1 4 2 1 5
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 ܘ ܝ ܒ FELISBENG 77 61 88 50 81 76 81 56 98 78 63 127 76 83 46 43 85 67 94 35 59 97 61 44 85 62 83 54 31 88 107 84 60 51 63 105 75 132 53 27 288 555 36 43 77 89 95 52 54 42 37 67 1 3 4 N234 1 2 1 1 3 WWN INW 2 1 2 3 3 45LLS 35 1 1 2
On the first day of class, an economics professor administers a test to gauge the math preparedness of her students. She believes that the performance on this math test and the number of hours studied per week on the course are the primary factors that predict a student's score on the final exam. She collects data from 60 students. Click here for the Excel Data File a. Estimate the sample regression equation that enables us to predict a student's final exam score on the basis of his/her math score and the number of hours studied per week. (Round your answers to 2 decimal places. Negative value should be indicated by a minus sign.) Predicted Final = + Ho: B1 B2 = 0; HA: At least one ß; > 0 b-1. At the 5% significance level, are a student's math score and the number of hours studied per week jointly significant in explaining a student's final exam score? First, specify the competing hypotheses. Ho: B1 B2 = 0; HA: At least one ß; < 0 Ho: B1 B₂ = 0; HA: At least one ß; * 0 b-2. Find the p-value. Op-value ≥ 0.10 Math + Hours
b-2. Find the p-value. p-value > 0.10 0.05 ≤ p-value < 0.10 0.025 ≤ p-value < 0.05 0.01 ≤ p-value < 0.025 p-value < 0.01 b-3. What is the conclusion to the test? Ho, we conclude the explanatory variables are jointly significant.
c-1. At the 5% significance level, is each explanatory variable individually significant in explaining a student's final exam score? First, specify the competing hypotheses. Ho: Bj = 0; HA: Bj > 0 Ho: Bj = 0; HA: Bj < 0 Ho: Bj = 0; HA: Bj ± 0 c-2. For each explanatory variable, state the p-value and determine whether the explanatory variable is significant in explaining Final Score. (Round p-value to 3 decimal places.) Explanatory Variables Math Hours p-value Significant in Explaining Final Score