All MCQs - Lecturer Statistics Past Papers and Syllabus Practice | PakExamPoint

Practise All MCQs in Lecturer Statistics Past Papers and Syllabus. Attempt multiple-choice questions, check answers and revise related subtopics.

All MCQs and revision practice

Study All through multiple-choice questions in Lecturer Statistics Past Papers and Syllabus. This subtopic contains 51 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these All MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.

All: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

51. What would be the consequences for the OLS estimator heteroscedasticity is present in a regression model but ignored?

A. It will be ignored
B. All of A, B and C will be true
C. It will be inconsistent
D. It will be inefficient

Check answer and explanation

Answer: It will be inefficient

Explanation If heteroscedasticity is present in a regression model but ignored , the Ordinary Least Squares (OLS) estimator will still be unbiased , but it will not be efficient. This means that the estimator will not have the smallest possible variance, and the estimates may not be precise.

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