This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Research Stats > Null Hypothesis – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Null Hypothesis Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A statement whose validity is tested on the basis of a sample is called? A) Null Hypothesis. B) Statistical Hypothesis. C) Composite Hypothesis. D) Simple Hypothesis. Show Answer Correct Answer: B) Statistical Hypothesis. 2. A soccer player wants to see if working with a new coach will improve her field goal percentage. Without a coach, she makes 50% of her shots. The null Hypothesis:Her field goal percentage stays the same after getting a new coach. The t-value of of her sample is 1.925 and the critical value is 1.007. A) The null hypothesis cannot be rejected and the difference is not significant. B) The null hypothesis cannot be rejected and the difference is significant . C) The null hypothesis can be rejected and the difference in performance is significant. D) The null hypothesis can be rejected and the difference in performance is not significant. Show Answer Correct Answer: C) The null hypothesis can be rejected and the difference in performance is significant. 3. A hypothesis which develops while planning the research A) Null hypothesis. B) Relational hypothesis. C) Working hypothesis. D) Discriptive hypothesis. Show Answer Correct Answer: C) Working hypothesis. 4. The rejection probability of Null Hypothesis when it is true is called as? A) Level of Significance. B) Level of Margin. C) Level of Rejection. D) Level of Confidence. Show Answer Correct Answer: A) Level of Significance. 5. Does taking aspirin every day reduce the chance of having a heart attack? The null hypothesis is aking aspirin daily does not affect heart attack risk. A survey of 300 peoples was conducted and the sample date showed that the t-vaue is 1.689 and the critical value is 0.593 A) The null hypothesis can be rejected and the difference is not significant. B) The null hypothesis can be rejected and the difference is significant. C) The null hypothesis cannot be rejected and the difference is not significant. D) The null hypothesis cannot be rejected and the difference is significant. Show Answer Correct Answer: B) The null hypothesis can be rejected and the difference is significant. 6. Of the data is located ..... standard deviation(s) above the mean and ..... standard deviation(s) below the mean. A) Three. B) Two. C) One. D) Zero. Show Answer Correct Answer: B) Two. 7. The weight of the average 6th grade student's backpack (with books in it) is 18.4 lbs. The principal of the school thinks that the backpack does not weight 18.4 lbs. A survey of 180 students was conducted and the sample date showed that the t-vaue is 1.089 and the critical value is 1.932 A) The null hypothesis can be rejected and the difference is significant. B) The null hypothesis can be rejected and the difference is not significant. C) The null hypothesis cannot be rejected and the difference is not significant. D) The null hypothesis cannot be rejected and the difference is significant. Show Answer Correct Answer: C) The null hypothesis cannot be rejected and the difference is not significant. 8. A statement made about a population for testing purpose is called? A) Test-Statistic. B) Level of Significance. C) Statistic. D) Hypothesis. Show Answer Correct Answer: D) Hypothesis. 9. Identify the correct null hypothesis:Is the proportion of babies born male different from 50%? The null hypotheses is the babies born male is not difference from 50&. In a sample of 200 babie were surveyed. The The t-value of the sample is of 1.279 and the critical value is 1.453. A) The null hypothesis cannot be rejected and the difference is significant. B) The null hypothesis can be rejected and the difference is significant. C) The null hypothesis can be rejected and the difference is not significant. D) The null hypothesis cannot be rejected and the difference is not significant. Show Answer Correct Answer: D) The null hypothesis cannot be rejected and the difference is not significant. 10. If a Null hypothesis denoted as A) H2. B) H1. C) H0. D) H3. Show Answer Correct Answer: C) H0. 11. A statement made about a population for testing hypothesis A) Static. B) Level of significance. C) Test static. D) Hypothesis. Show Answer Correct Answer: D) Hypothesis. 12. A hypothesis which defines the population distribution is called? A) Null Hypothesis. B) Composite Hypothesis. C) Statistical Hypothesis. D) Simple Hypothesis. Show Answer Correct Answer: D) Simple Hypothesis. 13. Shantay did the project to see if teens are better at math than adults. Which of the following represents her null hypothesis? A) Age has effect on mathematical ability. B) Age has no effect on mathematical ability. C) Adult are better at math than teens. D) Teens are better at math than adults. Show Answer Correct Answer: B) Age has no effect on mathematical ability. 14. A Null hypothesis has level of significance 9% for what values level of significance it will be rejected A) 0.009. B) O.099. C) 0.9. D) 0.99. Show Answer Correct Answer: A) 0.009. 15. You perform a sample test and the test showed that t-value is greater than the critical value. What do you do? A) Fail to reject the null hypothesis and the difference in test is not significant. B) Fail to reject the null hypothesis and the difference in test is significant. C) Reject the null hypothesis and the difference in test is not significant. D) Reject the null hypothesis and the difference in test is significant. Show Answer Correct Answer: D) Reject the null hypothesis and the difference in test is significant. 16. The rejection probability of null hypothesis when it true is called A) Level of significance. B) Level of confidence. C) Level of rejection. D) Level of margin. Show Answer Correct Answer: A) Level of significance. 17. If the assumed hypothesis is tested for rejection considering it to be true is called? A) Composite Hypothesis. B) Null Hypothesis. C) Statistical Hypothesis. D) Simple Hypothesis. Show Answer Correct Answer: B) Null Hypothesis. 18. If the null hypothesis is false then which of the following is accepted? A) Null Hypothesis. B) Alternative Hypothesis. C) Negative Hypothesis. D) Positive Hypothesis. Show Answer Correct Answer: B) Alternative Hypothesis. 19. When a hypothesis is stated negatively it is called A) Null hypothesis. B) Relational hypothesis. C) Situational hypothesis. D) Casual hypothesis. Show Answer Correct Answer: A) Null hypothesis. 20. Which hypothesis is predicts that there is no relationship between the independent variables and dependent variable A) Complex hypothesis. B) Simple hypothesis. C) Null hypothesis. D) Alternative hypothesis. Show Answer Correct Answer: C) Null hypothesis. Related QuizzesPaper 1 QuizzesUgc Net QuizzesAnalysis 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 QuizCorrelation Coefficient Coefficient Of Determination QuizDecision Making With Hypothesis Testing Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books