This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Research Stats > Inferential Statistics – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Inferential Statistics Quiz 2 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which test requires a repeated measures design? A) Spearman's Rho. B) Mann Whitney U. C) Chi squared. D) Wilcoxon T test. Show Answer Correct Answer: D) Wilcoxon T test. 2. Understanding-3. Can a consistent estimator still be biased? A) Yes, a consistent estimator can still be biased. B) No, a consistent estimator is always unbiased. C) No, a consistent estimator cannot be biased. D) Yes, a consistent estimator is always biased. Show Answer Correct Answer: A) Yes, a consistent estimator can still be biased. 3. Which symbol represents the variance of a sample? A) $ s^2$. B) $ \sigma$. C) $ s$. D) $ \sigma^2$. Show Answer Correct Answer: A) $ s^2$. 4. Which statistical procedure should be used in order to answer this research problem: "How may the level of reading comprehension of the selected students be described? " A) T-test. B) Mean and Standard Deviation. C) Frequency and Percentage. D) Correlation. Show Answer Correct Answer: B) Mean and Standard Deviation. 5. Which statistical procedure should be used in order to answer this research problem: "Do motivation and self-efficacy significantly predict the achievement test results of the students? " A) Paired Samples T-test. B) Correlation. C) Multiple Regression Analysis. D) Independent Samples T-test. Show Answer Correct Answer: C) Multiple Regression Analysis. 6. Which of the following is tested for significance? A) Alpha level. B) Alternative hypothesis. C) Null hypothesis. D) Statistical power. Show Answer Correct Answer: C) Null hypothesis. 7. Which statistical procedure should be used in order to answer this research problem: "Is there a significant difference in the perception of freshmen, sophomores, and juniors about online learning? " A) Independent Samples T-test. B) Paired Samples T-Test. C) Correlation. D) ANOVA. Show Answer Correct Answer: D) ANOVA. 8. The height of an individual is an example of a: A) Discrete variable. B) Categorical variable. C) Constant. D) Continuous variable. Show Answer Correct Answer: D) Continuous variable. 9. Which statistical procedure should be used in order to answer this research problem: "Is there a significant difference in the achievement test performance across the six Colleges? " A) Frequency and Percentage. B) ANOVA. C) Paired Samples T-test. D) Independent Samples T-test. Show Answer Correct Answer: B) ANOVA. 10. If I'm trying to find 0.0079 in the table, which value of z would I use? A) -2.42. B) -2.415. C) -2.42 or-2.41. D) -2.41. Show Answer Correct Answer: A) -2.42. 11. Outcome variables are .....? A) Quantitative. B) Independent. C) Dependent. D) Qualitative. Show Answer Correct Answer: C) Dependent. 12. Which statistical procedure should be used in order to answer this research problem: "Does the house size significantly predict the price of the house? " A) Mean and Standard Deviation. B) Correlation. C) Regression Analysis. D) Frequency and Percentage. Show Answer Correct Answer: C) Regression Analysis. 13. What is statistical estimation? A) Methods for reducing errors in inferential statistics. B) Methods for rounding answers in statistical calculations. C) Methods to determine the best graph to represent statistical data. D) Methods for reducing errors in descriptive statistics. Show Answer Correct Answer: A) Methods for reducing errors in inferential statistics. 14. What would be the critical values of Z for 98% confidence interval for a two-tailed test? A) +/-1.96. B) +/-2.33. C) +/-1.64. D) +/-2.55. Show Answer Correct Answer: B) +/-2.33. 15. What statistical tool is appropriate when the predictor is categorical and the outcome is quantitative? A) Spearman's r. B) Chi-square Test. C) Sign Test. D) Kruskal-Wallis H Test. Show Answer Correct Answer: C) Sign Test. 16. This figure can be affected by anomalous results A) Standard deviation. B) Mode. C) Mean. D) Range. Show Answer Correct Answer: D) Range. 17. The most commonly occurring number A) Mean. B) Range. C) Mode. D) Standard Deviation. Show Answer Correct Answer: C) Mode. 18. Check all that apply:Descriptive Statistics A) Allow random assignment to experimental conditions. B) Use data from a sample to answer questions about a population. C) Summarize and describe data. D) Allow you to generalize beyond the data at hand. Show Answer Correct Answer: C) Summarize and describe data. 19. Which statistical procedure should be used in order to answer this research problem: "Is there a significant difference in the patients' weight before and after the surgery? A) Independent Samples T-test. B) Paired Samples T-test. C) Multiple Regression Analysis. D) ANOVA. Show Answer Correct Answer: B) Paired Samples T-test. 20. If using a 95% confidence level, what value of z should you use? A) $ \pm2.58$. B) $ \pm1.96$. C) $ \pm0.58$. D) $ \pm0.95$. Show Answer Correct Answer: B) $ \pm1.96$. 21. If looking for 0.0077 in the table, which value of z should you use? A) -2.425. B) -2.43. C) Not enough information. D) -2.42. Show Answer Correct Answer: D) -2.42. 22. The middle number, once data is made ordinal A) Median. B) Mode. C) Range. D) Mean. Show Answer Correct Answer: A) Median. 23. When looking at statistical significance, social workers and socail scientists have settled on ..... to be the most common cutoff point to separate findings. A) 5. B) .05. C) .5. D) None of above. Show Answer Correct Answer: B) .05. 24. How can you reduce both Type I and Type II errors? A) Tamper with the data. B) Redo the tests. C) Increase the sample size. D) It can't be reduced. Show Answer Correct Answer: C) Increase the sample size. 25. Understanding-1. How does consistency affect the accuracy of a statistic? A) Consistency makes a statistic more accurate as the sample size increases. B) Consistency has no relationship with the accuracy of a statistic. C) Consistency does not affect the accuracy of a statistic. D) Consistency makes a statistic less accurate as the sample size increases. Show Answer Correct Answer: A) Consistency makes a statistic more accurate as the sample size increases. 26. An important statistical technique that enables us to decide whether or not we will believe the claims made about populations with unknown parameters is known as A) Hypothesis testing. B) Sample design. C) Statistics. D) Experiment. Show Answer Correct Answer: A) Hypothesis testing. 27. Remembering-3. What is the relationship between sample size and consistency in statistics? A) As the sample size decreases, consistency decreases. B) As the sample size increases, consistency decreases. C) As the sample size decreases, consistency increases. D) As the sample size increases, consistency increases. Show Answer Correct Answer: D) As the sample size increases, consistency increases. 28. Remembering-3. What is the difference between population and sample? A) Population is the whole group while sample is a part of it. B) Population is a random group while sample is a non-random group. C) Population is a large group while sample is a small group. D) Population is a complex group while sample is a simple group. Show Answer Correct Answer: A) Population is the whole group while sample is a part of it. 29. Those methods involving the collection, presentation, and characterization of a set of data in order to properly describe the various features of that set of data are called: A) Sampling. B) The scientific method. C) Descriptive statistics. D) Statistical inference. Show Answer Correct Answer: C) Descriptive statistics. 30. A measure of dispersion A) Median. B) Mean. C) Range. D) Mode. Show Answer Correct Answer: C) Range. ← PreviousNext →Related QuizzesPaper 1 QuizzesUgc Net QuizzesInferential Statistics Quiz 1Inferential Statistics Quiz 3Analysis Of Variance QuizChi Square QuizCoefficient Of Variation Discrete Serious And Continuous Serious QuizConcept Of Point And Interval Estimation QuizConcept Of Sampling And Other Concepts Related To Sampling QuizConfidence Intervals Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books