Hi, I can\'t seem to grasp how to calculate when a samplesize is large for insta

Question

Hi, I can't seem to grasp how to calculate when a samplesize is large for instance n = 30. The Central limit theorem is notexplained well enough on how they calculate this and then apply itto the problem. Please explain the above and show all work in the belowproblem as well. I believe this would involve the central limittheorem. Two reading tests were administered to both an experimentalgroup and a control group after 6 weeks of instructions duringwhich the experimental group rec’d peer tutoring and thecontrol group did not. For the experimental group with n1 =30 children, score on the vocabulary portion of the test was x1– 368.4 with sample standard deviation s1 = 39.5. Theaverage score on the vocabulary portion of the test for the n2 = 30subjects in the control group was x2= 349.2, with sample standarddeviation s2 = 56.6. Use a 1% level of significance to testthe claim that the experimental group performed better than thecontrol group. Please provide: Null and alternate hypothesis. What sampling distribution used. What assumptions you aremaking? What is the value of the sample test statistic? Find or estimate the P-Value. Sketch the sampling distributionand show the area corresponding to the P-Value. Based on your answers will you reject or fail to reject thenull hypothesis? Are the data statistically significant at level? State your conclusion in the context of the application. For degrees of freedom not in the student’s t table, usethe closest d.f. that is smaller. thank you! Hi, I can't seem to grasp how to calculate when a samplesize is large for instance n = 30. The Central limit theorem is notexplained well enough on how they calculate this and then apply itto the problem. Please explain the above and show all work in the belowproblem as well. I believe this would involve the central limittheorem. Two reading tests were administered to both an experimentalgroup and a control group after 6 weeks of instructions duringwhich the experimental group rec’d peer tutoring and thecontrol group did not. For the experimental group with n1 =30 children, score on the vocabulary portion of the test was x1– 368.4 with sample standard deviation s1 = 39.5. Theaverage score on the vocabulary portion of the test for the n2 = 30subjects in the control group was x2= 349.2, with sample standarddeviation s2 = 56.6. Use a 1% level of significance to testthe claim that the experimental group performed better than thecontrol group. Please provide: Null and alternate hypothesis. What sampling distribution used. What assumptions you aremaking? What is the value of the sample test statistic? Find or estimate the P-Value. Sketch the sampling distributionand show the area corresponding to the P-Value. Based on your answers will you reject or fail to reject thenull hypothesis? Are the data statistically significant at level? State your conclusion in the context of the application. For degrees of freedom not in the student’s t table, usethe closest d.f. that is smaller. thank you! thank you!

Explanation / Answer

Donald, I am really trying to understand this. I need to know how you arrived at the P-value.  And really need step by step explanations/instructons.  I am only posting those problems that I need the most help with and without understanding how you arrive at what you do leaves me no way of getting it, understanding it and the ability to do them myself all the way through.  So please if you can add more information it would be much appreciated. I am struggling.  thank you, Robin

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.