This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Research > Sampling Distribution – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Sampling Distribution Quiz 4 (10 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A sample of 30 women finds the mean height to be 62.3 in The population standard deviation was found to be 1.5 in. Find the margin of error of women's heights with a 95% CL. A) 0.65. B) 19.325. C) 1.699. D) 0.537. Show Answer Correct Answer: D) 0.537. 2. A population consists of 5 members. If samples of 3 are taken with replacement, how many possible samples are there? A) 243. B) 15. C) 10. D) 125. Show Answer Correct Answer: D) 125. 3. A z-score tells you ..... A) The standard deviation of a sampling distribution. B) The original raw score on which it is based. C) If the distribution it comes from is normal. D) How many standard deviations away from the mean a score lies. Show Answer Correct Answer: D) How many standard deviations away from the mean a score lies. 4. Any data set of size N has a number of corresponding sampling distributions, for sample sizes n=1 to n=N. What is the size of each of these sampling distributions? A) $^NC_n$. B) $N^n $. C) $^NP_n$. D) None of these. Show Answer Correct Answer: A) $^NC_n$. 5. The football coach randomly selected ten players and timed how long each player took to perform a certain drill. The times (in minutes) were:13.2, 5.1, 7.5, 8.0, 12.7, 7.6, 13.8, 14.5, 7.7, and 10.5. Determine a 99 percent confidence interval for the mean time for all players. (Assume that the population standard deviation is equal to 3.3) A) 8.01 < $\mu$ < 12.11. B) 12.75 < $\mu$ < 7.37. C) 12.11 < $\mu$ < 8.01. D) 7.37 < $\mu$ < 12.75. Show Answer Correct Answer: D) 7.37 < $\mu$ < 12.75. 6. The mean and standard deviation of a population are 400 and 40, respectively. Sample size is 25. What is the standard deviation of the sampling distribution? A) 400. B) 25. C) 8. D) 40. Show Answer Correct Answer: C) 8. 7. A sample of 20 cupcakes found the interval for calories to be (150, 350). Which is the correct interpretation of the 95% confidence interval? A) We are 95% confident that the true mean calorie content can be found with a sample of 150 to 350 cupcakes. B) We are 95% confident that the true mean calorie content in cupcakes is between 150 and 350 calories. C) We are 95% confident that a sample of 20 cupcakes will find 250 calories per cupcake. D) None of these are correct. Show Answer Correct Answer: B) We are 95% confident that the true mean calorie content in cupcakes is between 150 and 350 calories. 8. The mean and standard deviation of a (large) population are 200 and 20, respectively. If 64 data points are selected at random from this population, what is the probability that the mean value of these data points will be between 195 and 200? A) 0.5%. B) 41%%. C) 48%. D) 1.5%. Show Answer Correct Answer: C) 48%. 9. An automobile insurer has found that repair claims have a mean of $ 920 and a standard deviation of $ 870. Suppose that the next 100 claims can be regarded as a random sample from the long-run claims process.The probability that the mean of the next 100 claims is larger than $ 1000 is approximately A) 0.8212. B) 0.9200. C) 0.1789. D) 0.1788. Show Answer Correct Answer: C) 0.1789. 10. The mean and standard deviation of a population are 200 and 20, respectively. What is the probability of selecting 100 data values with a mean greater than 202? A) 36%. B) 45%. C) 16%. D) 25%. Show Answer Correct Answer: C) 16%. ← PreviousRelated QuizzesPaper 1 QuizzesUgc Net QuizzesSampling Distribution Quiz 1Sampling Distribution Quiz 2Sampling Distribution Quiz 3Reporting And Thesis Writing QuizResearch And Scientific Methods QuizResearch Concept QuizResearch Design QuizResearch Ethics Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books