Input the data below to SPSS and use the SPSS to conduct a two-sample t-test to examine whether there is a difference between these individuals' incomes before and after they return to school to get a master's degree. Before ($1,000) After ($1,000) 22 24 44 14 24 35 57 35 34 88 57 59 30 67 95 65 A) What is the p-value for the difference between the individuals' incomes before and after they return to school to get a master's degree? Is the difference statistically significant when the level of risk is 0.05? B) What are the degrees of freedom for the t-statistic? C) Report the 95% confidence interval for the mean difference. D) Whether we should retain or reject the null hypothesis? What conclusion can we make based on the results?

Input the data below to SPSS and use the SPSS to conduct a two-sample t-test to examine whether there is a difference between these individuals' incomes before and after they return to school to get a master's degree. Before ($1,000) After ($1,000) 22 24 44 14 24 35 57 35 34 88 57 59 30 67 95 65 A) What is the p-value for the difference between the individuals' incomes before and after they return to school to get a master's degree? Is the difference statistically significant when the level of risk is 0.05? B) What are the degrees of freedom for the t-statistic? C) Report the 95% confidence interval for the mean difference. D) Whether we should retain or reject the null hypothesis? What conclusion can we make based on the results?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 1GP

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