This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Research > Sampling Distribution – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Sampling Distribution Quiz 1 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What name refers to the standard deviation of the sampling distribution? A) Sampling deviation. B) Mean deviation. C) Sampling error. D) Standard error. Show Answer Correct Answer: D) Standard error. 2. We take an SRS of a sample of 300 students from 2500 students at PVHS and 300 students from 1500 students at St. Augustine. The standard deviation of the sampling distribution of mean gpa is A) Smaller for PVHS. B) Smaller for St. Augustine. C) The same. D) Not enough information. Show Answer Correct Answer: C) The same. 3. Parameter is the numerical characteristic of ..... A) Sample. B) Population. C) Standard Deviation. D) Variance. Show Answer Correct Answer: B) Population. 4. Find the area under the standard normal curve to the right of z =-2.67. A) 0.0869. B) 0.9962. C) 0.0008. D) 0.1234. Show Answer Correct Answer: B) 0.9962. 5. The weights of horses are approximately normal with a mean of 1, 500 lbs. and a standard deviation of 30 lbs. What is the probability that the mean weight of 36 randomly selected horses is greater than 1560 pounds? A) 34.46%. B) 97.72%. C) ~0%. D) 65.54%. Show Answer Correct Answer: C) ~0%. 6. The mean and standard deviation of a population are 200 and 20, respectively. What is the probability of selecting 25 data values with a mean less than 190? A) 99%. B) 69%. C) 0.6%. D) 31%. Show Answer Correct Answer: C) 0.6%. 7. The population of number of presents each child in a family gets on Christmas is strongly skewed right. The central limit theorem states ..... A) The mean number of gifts for a large number of sample children has a strong right skew shape. B) The mean number of gifts for a large number of sample children has a distribution that is close to normal. C) As we look at more and more children the mean number of gifts will be closer to the true mean. D) The mean number of gifts for any number of children will be approximately normal. Show Answer Correct Answer: B) The mean number of gifts for a large number of sample children has a distribution that is close to normal. 8. The mean distance an ASA student travels to school is 5.6 miles with a standard deviation of 1.7 miles. Is it more likely to find one student that travels more than 6 miles to school or a mean of a sample of 29 students that travel more than 6 miles? A) It is more likely to find 1 student that travels more than 6 miles to school. B) It is more likely to find a sample of 29 students whose mean is greater than 6 miles. C) Both equally likely. D) There is not enough information to answer this question. Show Answer Correct Answer: A) It is more likely to find 1 student that travels more than 6 miles to school. 9. In a crash test of 15 troopers, collision repair costs are found to have a distribution that is approximately normal with a mean of $ 1800. Assume that the population standard deviation is $ 950. Construct a 99% confidence interval for the repair cost. A) (1168, 2432). B) (1397, 2204). C) (1319, 2281). D) None of these. Show Answer Correct Answer: A) (1168, 2432). 10. A statistic is biased if ..... A) The mean of the sampling distribution IS equal to the vali. B) The value of the statistic from any sample IS equal to the parameter. C) The mean of the sampling distribution is NOT equal to the true value of the parameter. D) The value of the statistic from any sample is NOT equal to the parameter. Show Answer Correct Answer: C) The mean of the sampling distribution is NOT equal to the true value of the parameter. 11. A sample of 40 people owned an average of 1.35 apple products. It is known from a previous study that the population standard deviation of apple product ownership is 0.63 products. Construct a 95% confidence interval. A) (1.19, 1.51). B) (1.15, 1.55). C) (1.09, 1.61). D) (1.11, 1.58). Show Answer Correct Answer: B) (1.15, 1.55). 12. It is a process of selecting n sample size in the population via random number or through lottery method. A) Simple Random Sampling. B) Stratified Random Sampling. C) Systematic Random Sampling. D) Cluster Random Sampling. Show Answer Correct Answer: A) Simple Random Sampling. 13. Which of the following is NOT an example of random sampling? A) Lottery Sampling. B) Quota Sampling. C) Systematic Sampling. D) Cluster Sampling. Show Answer Correct Answer: B) Quota Sampling. 14. Of all dogs in a city are micro-chipped. In a sample of 50 dogs, what is the probability that less than 12 dogs are micro-chipped? A) 0.189. B) 0.237. C) 0.177. D) 0.126. Show Answer Correct Answer: C) 0.177. 15. Increasing the sample size of an opinion poll will reduce the A) Variability of opinions in the sample. B) Variability of opinions in the population. C) Variability of the estimates made from the data collected in the poll. D) Bias of the estimates made from the data collected in the poll. Show Answer Correct Answer: C) Variability of the estimates made from the data collected in the poll. 16. The Central Limit Theorem states that if the original distribution is (approximately) normal OR the sample size is greater than or equal to ....., then the sampling distribution is approximately normal. A) 500. B) 30. C) 80. D) 20. Show Answer Correct Answer: B) 30. 17. The 40 yards sprint times for a soccer team are found to be normally distributed with a mean of 5.2 seconds and a standard deviation of 0.3 seconds. What is the z-score for a player who runs a time of 5.6 seconds? A) 0.88. B) 1.33. C) -1.33. D) 1.02. Show Answer Correct Answer: B) 1.33. 18. In the game of Scrabble, each player begins by drawing 7 tiles from a bag containing 100 tiles. There are 42 vowel, 56 consonants, and 2 blank tiles in the bag. Cait chooses an SRS of 7 tiles. Let p-hat be the proportion of vowels in her sample. Is the Law of Large Counts met in this example? A) Yes. B) No. C) Not enough info to determine. D) None of above. Show Answer Correct Answer: B) No. 19. If n=1, then the sampling distribution would have a size of ..... A) (n-1). B) N. C) 1. D) N. Show Answer Correct Answer: B) N. 20. What happens to the shape of a sampling distribution of sample means as "n" increases? A) It becomes narrower and less normal. B) It becomes narrower and more normal. C) It becomes wider and more normal. D) It becomes wider and less normal. Show Answer Correct Answer: B) It becomes narrower and more normal. 21. What is the Middle initial of my Statistics Teacher? A) A. B) C. C) F. D) R. Show Answer Correct Answer: A) A. 22. A z-score is considered "unusual" if its absolute value is greater than ..... A) 2.5. B) 2. C) 3. D) 1. Show Answer Correct Answer: B) 2. 23. A population consists of 12 members. If samples of 4 are taken WITH replacement, how many possible samples are there? A) 20 763. B) 495. C) 20 736. D) 459. Show Answer Correct Answer: C) 20 736. 24. According to the Center for Disease Control, 93% of children entering kindergarten in the U.S. are vaccinated.Find the probability that a sample of 16 children would have fewer than 14 vaccinated. A) .9099. B) .0901. C) 1.34. D) -1.34. Show Answer Correct Answer: B) .0901. 25. The process of dividing the population into subgroups or 'strata' and drawing members at random from each subgroup or 'strata'. A) Simple Random Sampling. B) Stratified Random Sampling. C) Systematic Random Sampling. D) Cluster Random Sampling. Show Answer Correct Answer: B) Stratified Random Sampling. 26. A random sampling distribution of the mean is normally distributed when A) Sample size is small relative to the size of the population. B) The population is normally distributed. C) The sample size is at least 30. D) Both b and c. Show Answer Correct Answer: D) Both b and c. 27. A recent survey finds that 35% of US households have at least one dog. You randomly choose 50 households to ask if they have a dog. Could you use the Normal Approximation for this? A) Yes, both np and nq are at least 5. B) No, np is less than five. C) No, nq is less than five. D) No, this is not a binomial. Show Answer Correct Answer: A) Yes, both np and nq are at least 5. 28. It is a process of selecting the kth element in the population until the desired number of subjects or respondents is attained. A) Simple Random Sampling. B) Stratified Random Sampling. C) Systematic Random Sampling. D) Cluster Random Sampling. Show Answer Correct Answer: C) Systematic Random Sampling. 29. Increasing the sample size of sample will reduce the A) Mean. B) Variability. C) Bias. D) Nothing, it will stay the same. Show Answer Correct Answer: B) Variability. 30. It is a process of selecting clusters from a population which is very large or widely spread out over a wide geographical area. A) Simple Random Sampling. B) Stratified Random Sampling. C) Systematic Random Sampling. D) Cluster Random Sampling. Show Answer Correct Answer: D) Cluster Random Sampling. Next →Related QuizzesPaper 1 QuizzesUgc Net QuizzesSampling Distribution Quiz 2Sampling Distribution Quiz 3Sampling Distribution Quiz 4Reporting And Thesis Writing QuizResearch And Scientific Methods QuizResearch Concept QuizResearch Design QuizResearch Ethics Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books