6 pts You wish to determine whether your textbook is beneficial or detrimental to students learning statistics. On a national statistics exam, the mean for the population of students who have used other textbooks is 68.5. A random sample of students who have used your book has the following scores: 63 69 91 76 72 84 61 75 68 86 State the null and alternative hypotheses. (1) Ho: Ha: b) Specify the degrees of freedom. (1) df = c) Calculate the test statistic (2) What type of t-test is this? What was your obtained value of t? d) Given that tcrit for a=.05 is 2.262, what should the researcher conclude? State your conclusions statistically and in terms of the research question. (2) Statistical statement Conclusion in words ThinkCentre Next ▸

6 pts You wish to determine whether your textbook is beneficial or detrimental to students learning statistics. On a national statistics exam, the mean for the population of students who have used other textbooks is 68.5. A random sample of students who have used your book has the following scores: 63 69 91 76 72 84 61 75 68 86 State the null and alternative hypotheses. (1) Ho: Ha: b) Specify the degrees of freedom. (1) df = c) Calculate the test statistic (2) What type of t-test is this? What was your obtained value of t? d) Given that tcrit for a=.05 is 2.262, what should the researcher conclude? State your conclusions statistically and in terms of the research question. (2) Statistical statement Conclusion in words ThinkCentre Next ▸

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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