1. The University offers supplemental instruction (SI) for Introductory Statistics students four times a week. The table below records the number of SI visits during the semester for a sample of students along with each student’s final exam grade. Use the appropriate statistical test to determine if it is beneficial to attend SI for help. All appropriate statistical procedures/tests should be done with 5% P-value or 95% Confidence Interval.
# of SI visits | 2 | 8 | 10 | 9 | 15 | 7 | 5 | 4 | 8 | 10 | 7 | 7 | 5 | 4 | 4 | 11 |
Final exam grade | 40 | 85 | 80 | 84 | 90 | 72 | 50 | 59 | 85 | 70 | 66 | 70 | 63 | 60 | 59 | 79 |
Click here for the SI-PA#3 data. (3 points)
# of SI visits Final grade 2 40 8 85 10 80 9 84 15 90 7 72 5 50 4 59 8 85 10 70 7 66 7 70 5 63 4 60 4 59 11 79
1. The University offers supplemental instruction (SI) for Introductory Statistics students four times a week. The...
A statistics professor would like to build a model relating student scores on the first test to the scores on the second test. The test scores from a random sample of 21 students who have previously taken the course are given in the table. Test Scores Student First Test Grade Second Test Grade 1 70 71 2 93 88 3 79 82 4 83 80 5 65 77 6 80 80 7 71 74 8 84 85 9 44 67...
What is the relationship between the amount of time statistics students study per week and their final exam scores? The results of the survey are shown below. Time Score 3 67 13 95 6 15 77 89 13 100 3 66 7 63 11 79 1 59 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: ? D = 0 H: ? *0 The p-value is: (Round...
QUESTION 35 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods I at Sarn Houston State University are presented below. There are 15 sections in total Section 3: (69.92, 66, 81.76, 55, 70, 83, 68, 57.80, 66, 69, 55, 88, 70, 70, 70,56,50) Section 6: (10, 73, 88, 58, 89,69, 63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81, 68, 89) Section 9: (30, 85, 76, 73, 92,...
QUESTION 33 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods I at Sam Houston State University are presented below. There are 25 sections in total Section 3: (69.92, 66, 81, 76, 55, 70, 83, 68, 57, 80, 66, 69, 55, 88, 70, 70, 70,56,50) Section 6: [10, 73, 88, 58, 89, 69, 63, 76, 87, 82, 97, 76,66,95, 84, 88, 82, 81, 68, 89) Section 9: (30, 85, 76, 73,92,...
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QUESTION 32 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods I Sam Houston State University we pested below. There we wechsel Section 3: (69.92.66, 81, 76, 55, 70, 83, 68, 57, 80, 66, 69, 55, 58, 70, 70, 70, 56, 50) Section 6: (10, 73, 88, 58, 89, 69, 63, 76, 87, 82, 97, 76, 66,95, 84, 88, 82, 81,68, 19) Section 9. (30,85, 76, 73.92, 65,90, 71, 77, 78,...
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