Which approach can be used to test for autocorrelation?

Question

BlackTom AI · Accepted Answer

To answer the question about testing for autocorrelation, we should evaluate what each option measures or tests for.
Option 1: 'regression coefficient' pertains to the estimated slope or effect size in a regression model. While significance tests on coefficients exist (like t-tests), this does not test whether residuals are autocorrelated over time or sequence, so it does not address autocorrelation directly.
Option 2: 'F-test or t-test' are general statistical tests used for evaluating hypotheses about parameters or model fit, but they are not specific tests for autocorrelation in the residuals. They can be part of regression analysis for other purposes, yet they do not diagnose correlation between consecutive error terms.
Option 3: 'Durbin-Watson statistic' is specifically designed to detect autocorrelation in the residuals from a regression analysis, particularly first-order autocorrelation. It assesses whether adjacent residuals are correlated, which is the hallmark of autocorrelation concerns in time-series or ordered data.
Option 4: 'correlation coefficient' measures the strength and direction of a linear relationship between two variables. While correlation concepts are related, this option does not directly test for autocorrelation of residuals within a regression context, making it unsuitable for diagnosing autocorrelation in regression residuals.
In summary, the Durbin-Watson statistic is the tool tailored for detecting autocorrelation in residuals, whereas the other options address different aspects of regression analysis or relationships between variables and do not specifically test for residual autocorrelation.

2025FallDYN-T-SCM593-87040-87041-88901 Comprehensive Exam- Requires Respondus LockDown Browser

Which approach can be used to test for autocorrelation?

查看解析

登录即可查看完整答案

类似问题

The Breusch-Godfrey test statistic follows a:[Fill in the blank]

Durbin-Watson test is not powerful when lagged dependent variable is in regressors (design matrix)

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单