Suppose population 1 consists of all students who picked up all the tests they completed prior to taking the final exam. Suppose population 2 consists of all students who had one or more tests that they completed that were not picked up prior to taking the final exam. Based on years of grading final exams and observing grades, STAT 210 instructors conjecture that the mean final exam grade for all students who picked up all their tests is greater than the mean final exam grade for all students who had one or more tests that were not picked up. A simple random sample of 56 students who picked up all tests they completed was selected, and the mean score on final exam for this sample of students was 83 with a standard deviation of 10.4. An independent simple random sample of 51 students who had one or more tests that were not picked up was selected, and the mean score on the final exam for this sample of students was 67 with a standard deviation of 24.2. Both distributions are skewed heavily to the left. If appropriate, use this information to test the hypotheses stated in question 10 at the a=.01 level of significance. 14 a. 0.0000000000000744945 a. 0.000001671732 Based on the p-value you obtained and using a - .01, which of the following is the correct decision? Fail to reject the null hypothesis p-value is large Accept the null hypothesis Reject the null hypothesis p-value is small 00000
Suppose population 1 consists of all students who picked up all the tests they completed prior to taking the final exam. Suppose population 2 consists of all students who had one or more tests that they completed that were not picked up prior to taking the final exam. Based on years of grading final exams and observing grades, STAT 210 instructors conjecture that the mean final exam grade for all students who picked up all their tests is greater than the mean final exam grade for all students who had one or more tests that were not picked up. A simple random sample of 56 students who picked up all tests they completed was selected, and the mean score on final exam for this sample of students was 83 with a standard deviation of 10.4. An independent simple random sample of 51 students who had one or more tests that were not picked up was selected, and the mean score on the final exam for this sample of students was 67 with a standard deviation of 24.2. Both distributions are skewed heavily to the left. If appropriate, use this information to test the hypotheses stated in question 10 at the a=.01 level of significance. 14 a. 0.0000000000000744945 a. 0.000001671732 Based on the p-value you obtained and using a - .01, which of the following is the correct decision? Fail to reject the null hypothesis p-value is large Accept the null hypothesis Reject the null hypothesis p-value is small 00000
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Suppose population 1 consists of all students who picked up all the tests they completed prior to
taking the final exam. Suppose population 2 consists of all students who had one or more tests
that they completed that were not picked up prior to taking the final exam.
Based on years of grading final exams and observing grades, STAT 210 instructors conjecture that
the mean final exam grade for all students who picked up all their tests is greater than the mean final exam
grade for all students who had one or more tests that were not picked up.
A simple random sample of 56 students who picked up all tests they completed was selected, and
the mean score on final exam for this sample of students was 83 with a standard deviation of
10.4. An independent simple random sample of 51 students who had one or more tests that
were not picked up was selected, and the mean score on the final exam for this sample of
students was 67 with a standard deviation of 24.2. Both distributions are skewed heavily to
the left. If appropriate, use this information to test the hypotheses stated in question 10 at the
a = .01 level of significance.
14
a. 0.0000000000000744945
a. 0.000001671732
Based on the p-value you obtained and using a = .01, which of the following is the correct decision?
Fail to reject the null hypothesis
p-value is large
Accept the null hypothesis
Reject the null hypothesis
p-value is small
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