Does a statistics course improve a student's mathematics skills, as measured by a national test? Suppose a random sample of 13 students takes the same national mathematics exam prior to enrolling in a stats course and just after completing the course. At a 19% level of significance determine whether the scores after the stats course are significantly higher than the scores before. Take the differences - before - after. Before After 430 465 485 475 520 535 360 410 440 425 500 505 425 450 470 480 S15 520 430 430 450 460 495 500 $40 530 What type of alternative hypothesis is appropriate for this research question? O one-sided O two-sided Locate student 9 in the dataset. What rank will be given to this student? What is the value of the test statistic, T? Give answer to 1 decimal place. what is the critical value for the study? (Hint: student 10 will be dropped from the analysis, since the scores are the same before and after the stats class). Are the exam scores significantly higher after the stats course? O Yes O No
Does a statistics course improve a student's mathematics skills, as measured by a national test? Suppose a random sample of 13 students takes the same national mathematics exam prior to enrolling in a stats course and just after completing the course. At a 19% level of significance determine whether the scores after the stats course are significantly higher than the scores before. Take the differences - before - after. Before After 430 465 485 475 520 535 360 410 440 425 500 505 425 450 470 480 S15 520 430 430 450 460 495 500 $40 530 What type of alternative hypothesis is appropriate for this research question? O one-sided O two-sided Locate student 9 in the dataset. What rank will be given to this student? What is the value of the test statistic, T? Give answer to 1 decimal place. what is the critical value for the study? (Hint: student 10 will be dropped from the analysis, since the scores are the same before and after the stats class). Are the exam scores significantly higher after the stats course? O Yes O No
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 18HP
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