This quiz works best with JavaScript enabled. Home > Finance > Economics > Agricultural Economics > Agricultural Statistics And Economics > Agricultural Statistics And Economics – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Agricultural Statistics And Economics Quiz 1 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of data is contained in the census of India? A) Population. B) Industry. C) National Income. D) Agriculture. Show Answer Correct Answer: A) Population. 2. An agricultural economist says that the correlation between corn prices and soybean prices is r = 0.7. This means that ..... A) When corn prices are above average, soybean prices tend to stay the same. B) When corn prices are below average, soybean prices tend to be above average. C) When corn prices are above average, soybean prices tend to be below average. D) When corn prices are above average, soybean prices also tend to be above average. Show Answer Correct Answer: D) When corn prices are above average, soybean prices also tend to be above average. 3. Which of the following is not a non economic activity? A) Taking care of children by mother. B) Services provided by a doctor in a hospital. C) Household course by housewife. D) Blood donation camp organised for a noble cause. Show Answer Correct Answer: B) Services provided by a doctor in a hospital. 4. What are the qualities that a good questionnaire should have A) Precise and Clear. B) Unambiguous Questions. C) Sequence of the Questions. D) All of the Above. Show Answer Correct Answer: D) All of the Above. 5. A study on facial expression and anxiety was conducted to determine if anxious people exhibit more or fewer facial expressions compared to non-anxious people. The number of facial expressions exhibited in response to 25 emotional cues for 25 anxious subjects and 25 non-anxious subjects are collected. Will anxious people exhibit a different number of facial expressions compared to non-anxious people? A) 1-sample t-test. B) 1-sample t-test (mean difference). C) 2-sample t-test (difference in means). D) None of above. Show Answer Correct Answer: C) 2-sample t-test (difference in means). 6. Identify whether the information described is a parameter or statistic. 4. The average temperature in the Philippines is at 27 degrees Celsius. The average amount of precipitation is at 32%, humidity is 91% and wind of 3km/h.(source:hypothetical data based on www.weather.com) A) Parameter. B) Statistic. C) Needs more information. D) Cannot be determined. Show Answer Correct Answer: A) Parameter. 7. The amount added and subtracted to the statistic when creating a confidence interval. A) Point Estimator. B) Margin of Error. C) Population. D) Statistic. Show Answer Correct Answer: B) Margin of Error. 8. What is the point estimator for the interval (-5, 13)? A) -5. B) 10. C) 4. D) 9. Show Answer Correct Answer: C) 4. 9. All the human activities in which people are gainfully employed are called- A) Exchange. B) Non economic activities. C) Economic Activities. D) Distribution. Show Answer Correct Answer: C) Economic Activities. 10. When conducting a significance test for the difference in proportions, why do we pool the data when finding standard error? A) Because we like to swim. B) Because we assume p1 = p2 in Ho. C) Because the sample sizes are always equal. D) To be safe and make sure we don't underestimate the standard error. Show Answer Correct Answer: B) Because we assume p1 = p2 in Ho. 11. The NCAA requires colleges to report the graduation rates of their athletes. One Big Ten university reported that the graduation rates for a specific year were 21 of 28 females athletes and 24 of 46 male athletes. Is there evidence that a smaller proportion of male athletes than of female athletes graduate? A) 2-proportion z-test. B) 1-sample t-test (mean difference). C) 2-sample t-test (difference in means). D) 1-sample t-test. Show Answer Correct Answer: A) 2-proportion z-test. 12. Composition, distribution, growth of human, population, birth, death, migration, rates, social economic, standing of population. A) Business. B) Education. C) Agriculture. D) Biology. E) Demography. Show Answer Correct Answer: E) Demography. 13. A scatter plot was created to show the relationshipbetween the number of staff members and studentsat various schools. The scatter plot's trend line has anequation of y = 0.1x + 18, where y is the total numberof staff members and x is the total number ofstudents.Use the equation to predict the number of students ina school with 120 staff members. A) 1, 038 students. B) 890 students. C) 30 students. D) 1, 020 students. Show Answer Correct Answer: D) 1, 020 students. 14. The mean life of a tire is 30, 000 km. The standard deviation is 2000 km. Then, 68% of all tires will have a life between ..... km and ..... km. A) 28, 000 km and 32, 000 km. B) 24, 000 km and 34, 000 km. C) 26, 000 km and 34, 000 km. D) 27, 000 km and 31, 000 km. Show Answer Correct Answer: A) 28, 000 km and 32, 000 km. 15. Which of the following is correct regarding Statistics? A) Aggregate of facts. B) Numerically expressed. C) Affected by multiplicity of causes. D) All of these. Show Answer Correct Answer: D) All of these. 16. Identify whether the information described is a parameter or statistic. 1. A study was conducted on selected medicine produce of a pharmaceutical company. It was found that the variability of the medicine manufactured in the laboratory is at 0.008. A) Statistic. B) Cannot be determined. C) Needs more information. D) Parameter. Show Answer Correct Answer: A) Statistic. 17. Increasing the sample size ..... the confidence interval. A) Narrows. B) There is not enough evidence to determine the answer. C) Widens. D) Does not affect. Show Answer Correct Answer: A) Narrows. 18. Jorge's score on Exam 1 in his statistics class was at the 64th percentile of the scores for all students. His score falls A) Between the minimum and first quartile. B) Between the first quartile and the median. C) Between the median and the third quartile. D) Between the third quartile and the maximum. E) At the mean score for all students. Show Answer Correct Answer: C) Between the median and the third quartile. 19. Which of the following changes to a study would result in a narrower confidence interval? A) Decreasing the confidence level, increasing the sample size. B) Increasing the confidence level, decreasing the sample size. C) Increasing the confidence level, increasing the sample size. D) Decreasing the confidence level, decreasing the sample size. Show Answer Correct Answer: A) Decreasing the confidence level, increasing the sample size. 20. Which of the following is NOT a type of probability sample? A) Judgmental sampling. B) Simple random sample. C) Stratified sample. D) Multistage sample. Show Answer Correct Answer: A) Judgmental sampling. 21. Which scenario do you think would yield data that when graphed would be most likely left skewed? A) Scores on an easy test. B) Net Income of Americans. C) Weights of cocker spaniels. D) None of above. Show Answer Correct Answer: A) Scores on an easy test. 22. A politician wants to know what percentage of the voters support her position on the issue of forced busing for integration. What size voter sample should be obtained to determine with 90% confidence the support level to within 4%? A) 25. B) 1691. C) 21. D) 423. E) 600. Show Answer Correct Answer: D) 423. 23. A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence interval for the proportion of homeless persons who are veterans. A) (0.184, 0.266). B) (0.176, 0.274). C) (0.161, 0.289). D) (0.167, 0.283). Show Answer Correct Answer: A) (0.184, 0.266). 24. Statistics is the science of collecting, organizing, interpreting, and analyzing data. A) Geometry. B) Statistics. C) Information. D) Data. Show Answer Correct Answer: B) Statistics. 25. A large company surveys 100 employees by taking random samples of 10 managers and 90 non-managerial employees.What type of sample is this? A) Simple random sampling. B) Systematic random sampling X. C) Stratified random sampling. D) Cluster random sampling. Show Answer Correct Answer: C) Stratified random sampling. 26. The mean temperature in Glens Falls for the month of February is 23 degrees with a standard deviation of 4.2 degrees. What is the z-score for a temperature of 17 degrees? A) -1.43. B) 11.5. C) 1. D) 1.43. Show Answer Correct Answer: A) -1.43. 27. What is the least expensive and least time-consuming of all sampling techniques? A) Simple random sampling. B) Stratified sampling. C) Convenience sampling. D) Judgmental sampling. E) Snowball sampling. Show Answer Correct Answer: C) Convenience sampling. 28. If I change the units on each one of my original data points from yards to meters, then my correlation will change as well. A) Correlation does not imply causation. B) False. C) There is an explanatory response relationship with yards to meters. D) True. Show Answer Correct Answer: B) False. 29. Data originally collected in the process of investigation are known as A) Foreign data. B) Primary data. C) Secondary data. D) Third data. Show Answer Correct Answer: B) Primary data. 30. Which District has the lowest total rice crop land areas in 2021? A) Tutong District. B) Brunei & Muara District. C) Belait District. D) Temburong District. Show Answer Correct Answer: A) Tutong District. 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