This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Research Stats > Decision Making With Hypothesis Testing – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Decision Making With Hypothesis Testing Quiz 1 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A Type II error is the error of A) Rejecting Ho when it is false. B) Accepting Ho when it is false. C) Accepting Ho when it is true. D) Rejecting Ho when it is true. Show Answer Correct Answer: B) Accepting Ho when it is false. 2. What separates the critical region from the noncritical region? A) Critical value. B) Computed value. C) Z-score. D) None of above. Show Answer Correct Answer: A) Critical value. 3. A hypothesis that states that there is no difference between two parameters A) Type II error. B) Alternative. C) Null. D) Type I error. Show Answer Correct Answer: C) Null. 4. It is the statistical method used in making decisions using experimental data. A) Simple analysis. B) Observation. C) Analytical testing. D) Hypothesis testing. Show Answer Correct Answer: D) Hypothesis testing. 5. Using a left-tailed test, which of the following value of z will not fall in the rejection region where the critical value is-1.638? A) -1.637. B) -1.641. C) -1.706. D) -1.639. Show Answer Correct Answer: A) -1.637. 6. A statement about a population parameter A) Type I error. B) Level of significance. C) Alternative. D) Statistical hypothesis. Show Answer Correct Answer: D) Statistical hypothesis. 7. The maximum probability of a Type I error that the decision maker will tolerate is called A) Critical value. B) The level of significance. C) Probability value. D) Decision value. Show Answer Correct Answer: B) The level of significance. 8. What term is being used to describe a proposed explanation, assertion, or assumption about a population parameter or about the distribution of a random variable? A) Hypothesis. B) Decision. C) Statistic. D) Probability. Show Answer Correct Answer: A) Hypothesis. 9. Which of the following would be an appropriate null hypothesis? A) The mean of a sample is equal to 80. B) The mean of a population is greater than 80. C) The mean of a population is not equal to 80. D) The mean of a population is equal to 80. Show Answer Correct Answer: D) The mean of a population is equal to 80. 10. By taking a level of significance of 5% it is the same as saying A) We are 5% confident the results have not occurred by chance. B) We are 95% confident that the results have not occurred by chance. C) We are 95% confident that the results have occurred by chance. D) None of above. Show Answer Correct Answer: B) We are 95% confident that the results have not occurred by chance. 11. What hypothesis states equality or no difference, or no relationship/effect? A) Statistical hypothesis. B) Null hypothesis. C) Alternative hypothesis. D) None of above. Show Answer Correct Answer: B) Null hypothesis. 12. A value from the normal distribution table that separates the shaded and unshaded region A) Critical region. B) Level of significance. C) Critical values. D) Type II error. Show Answer Correct Answer: C) Critical values. 13. Occurs if the null hypothesis is not rejected when it is actually false A) Type II error. B) Level of significance. C) Type I error. D) Null. Show Answer Correct Answer: A) Type II error. 14. The following are methods used to test hypotheses except: A) Survey method. B) P-value method. C) Confidence interval method. D) Traditional (computed value) method. Show Answer Correct Answer: A) Survey method. 15. What do you mean by Confidence Level is 95 % A) 95 percent of the times the researcher is correct. B) 95 percent of the time the researcher can get the correct data. C) 95 percent of the time the researcher cannot go wrong. D) None of the above. Show Answer Correct Answer: B) 95 percent of the time the researcher can get the correct data. 16. $ H_0:\ \mu=k\ \ \ \ H_a:\ \ \mu\ne k$ What is the appropriate hypothesis test used for this? A) Right-tailed test. B) Left-tailed test. C) Two-tailed test. D) None of above. Show Answer Correct Answer: C) Two-tailed test. 17. It is a proposed explanation, assertion, or assumption about a population parameter or about the distribution of a random variable. A) Conclusion. B) Hypothesis. C) Proposition. D) Hypothesis testing. Show Answer Correct Answer: B) Hypothesis. 18. It is a statement that describes that there is no difference between a parameter and a specific value. A) Sample Hypothesis. B) Null Hypothesis. C) Hypothesis. D) Alternative Hypothesis. Show Answer Correct Answer: B) Null Hypothesis. 19. It is a statistical method applied in making decisions using experimental data. Hypothesis testing is basically testing an assumption that we make about a population. A) Proposition. B) Hypothesis testing. C) Conclusion. D) Hypothesis. Show Answer Correct Answer: B) Hypothesis testing. 20. A result was said to be significant at the 5% level. This means: A) The null hypothesis is probably wrong. B) The result would be unexpected if the null hypothesis were true. C) The null hypothesis is probably true. D) None of the above. Show Answer Correct Answer: B) The result would be unexpected if the null hypothesis were true. 21. What do you call the decision making process for evaluating claims about a population based on the characteristics of a sample purportedly coming out from the population? A) Hypothesis. B) Alternative Hypothesis. C) Hypothesis Testing. D) Null Hypothesis. Show Answer Correct Answer: C) Hypothesis Testing. 22. Hypothesis Testing is done for which kind of research study A) Qualitative. B) Quantitative. C) Both. D) None of above. Show Answer Correct Answer: B) Quantitative. 23. Which value separates the critical region from the noncritical region in a normal curve when testing the hypothesis? A) Critical value. B) T-value. C) Z-value. D) Computed value. Show Answer Correct Answer: A) Critical value. 24. Occurs if the null hypothesis is rejected when it is actually true A) Critical region. B) Type I error. C) Type II error. D) Hypothesis testing. Show Answer Correct Answer: B) Type I error. 25. Which of the following must be used as the significance level if we want a lower possibility of correct decision? A) 2%. B) 10%. C) 1%. D) 5%. Show Answer Correct Answer: B) 10%. 26. If a hypothesis is rejected at the 0.025 level of significance A) Must not be rejected at the 0.01 level. B) Must be rejected at the 0.01 level. C) D. must not be rejected at any other level. D) Must be rejected at any level. Show Answer Correct Answer: A) Must not be rejected at the 0.01 level. 27. The claim being assessed in a hypothesis test A) Alternative hypothesis. B) Null hypothesis. C) P-Value. D) Parameter. Show Answer Correct Answer: B) Null hypothesis. 28. In hypothesis testing, the level of significance is A) The probability of committing a Type II erro. B) The probability of committing a Type I error. C) The probability of either a Type I or Type II, depending on the hypothesis to be tested. D) None of the above. Show Answer Correct Answer: B) The probability of committing a Type I error. 29. Which hypothesis is generally formulated to look for evidence to support a claim called a research hypothesis? A) Statistical hypothesis. B) Null hypothesis. C) Alternative hypothesis. D) None of above. Show Answer Correct Answer: C) Alternative hypothesis. 30. The statement "There number of computers delivered on a daily basis is not 20" is an example of what kind of hypothesis? A) Null Hypothesis. B) Sample Hypothesis. C) Hypothesis Testing. D) Alternative Hypothesis. Show Answer Correct Answer: D) Alternative Hypothesis. 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