<<123456789101112131415161718192021>> 1. What is estimation in statistics?Drawing conclusions from a sampleCalculating population parameters directlyAnalyzing individual data pointsIgnoring sample statisticsQuestion 1 of 21 2. What is an estimator in statistical estimation?A population parameterA specific numerical valueA sample statistic used to estimate a population parameterA random variableQuestion 2 of 21 3. What is a point estimate in statistical estimation?An estimate expressed as an intervalA specific numerical value of the estimatorThe range of values around the sample meanThe average of the population parametersQuestion 3 of 21 4. In estimation, what does the term "interval estimate" refer to?A single value estimateA range of values within which the parameter is likely to fallThe standard deviation of the sampleThe median of the populationQuestion 4 of 21 5. If the sample mean is used to estimate the population mean, what is the specific numerical value called?Population parameterEstimation intervalPoint estimateStandard deviationQuestion 5 of 21 6. What is an example of an estimator for population proportion?Sample meanPopulation meanSample proportionPopulation varianceQuestion 6 of 21 7. If the meter-reading of a sample of used cars is 70000 KMs, what is this specific value called in estimation?Population meanEstimatorPoint estimateInterval estimateQuestion 7 of 21 8. What is an interval estimate in statistics?A single numerical valueA range of values between which a population parameter is expected to lieThe average of the sampleThe standard deviation of the populationQuestion 8 of 21 9. ....................represent in an interval estimate?Population parameterConfidence levelSpecific values of the sampleBounds of the interval estimateQuestion 9 of 21 10. What is an interval estimate in statistics?A single numerical valueA range of values between which a population parameter is expected to lieThe average of the sampleThe standard deviation of the populationQuestion 10 of 21 11. If a Branch Manager states that the profit is estimated to be between Rs.2 crores to Rs.2.50 crores, what type of estimate is this?Point estimateConfidence intervalUnbiased estimateConsistent estimateQuestion 11 of 21 12. What are the three components of a confidence interval?Population parameter, sample size, estimateConfidence level, statistic, margin of errorUnbiased, efficient, consistentInterval estimate, point estimate, sufficiencyQuestion 12 of 21 13. What is the purpose of a confidence interval in statistics?To provide a single numerical valueTo express the precision and uncertainty of a sampling methodTo ignore the population parameterTo decrease the sample sizeQuestion 13 of 21 14. What does the confidence level of a confidence interval indicate?The size of the standard errorThe probability of observing a specific sampleThe uncertainty of a sampling methodThe range of values in the interval estimateQuestion 14 of 21 15. In a 95% confidence interval, what does the percentage represent?The size of the standard errorThe probability that the population parameter is within the intervalThe average of the sampleThe margin of errorQuestion 15 of 21 16. What does the term "margin of error" represent in a confidence interval?The size of the sampleThe range of values around the population meanThe precision or uncertainty associated with the estimateThe probability of a specific outcomeQuestion 16 of 21 17. How is the margin of error calculated in a confidence interval?By subtracting the sample mean from the population meanBy dividing the standard deviation by the sample sizeBy adding or subtracting a certain value from the sample statisticBy multiplying the sample mean by the population meanQuestion 17 of 21 18. In a survey stating a 95% confidence level and a 5% margin of error, what does the 95% confidence level represent?The size of the standard errorThe probability that the sample mean is accurateThe uncertainty associated with the estimationThe range of values within the confidence intervalQuestion 18 of 21 19. Why is the margin of error important in a confidence interval?It determines the sample sizeIt quantifies the precision or uncertainty of the estimateIt establishes the population parameterIt defines the confidence levelQuestion 19 of 21 20. Why is the concept of a confidence interval useful in this scenario?To determine the sample sizeTo estimate the population varianceTo provide a range of values for the population parameterTo calculate the sample meanQuestion 20 of 21 21. Comparing the confidence intervals at 96% and 92% levels, how does changing the confidence level affect the interval width?The interval becomes wider.The interval becomes narrower.The interval remains the same.The interval becomes negative.Question 21 of 21 Loading...
