Which of the following statements about sampling is appropriate? A: Sampling risk could be reduced to zero by enlarging the sample size B: Sampling risk could be quantified in a statistical sampling C: Non-sampling risk could be reduced to zero by enlarging the sample size D: Non-sampling risk doesn’t exist during tests of controls
Which of the following statements about sampling is appropriate? A: Sampling risk could be reduced to zero by enlarging the sample size B: Sampling risk could be quantified in a statistical sampling C: Non-sampling risk could be reduced to zero by enlarging the sample size D: Non-sampling risk doesn’t exist during tests of controls
The following sampling method with the smallest sampling error is () A: Stratified sampling B: Simple random sampling C: Systematic sampling D: Cluster sampling E: Double-blind sampling
The following sampling method with the smallest sampling error is () A: Stratified sampling B: Simple random sampling C: Systematic sampling D: Cluster sampling E: Double-blind sampling
Which of the following is not random sampling method ? () A: Simple random sampling B: Systematic<br/>sampling C: Nonprobability sampling D: Cluster sampling E: Stratified sampling
Which of the following is not random sampling method ? () A: Simple random sampling B: Systematic<br/>sampling C: Nonprobability sampling D: Cluster sampling E: Stratified sampling
Which of the following options does not belong to the commonly used random sampling method () A: typical sampling B: multi-stage sampling C: Stratified sampling D: Systematic sampling E: Cluster sampling
Which of the following options does not belong to the commonly used random sampling method () A: typical sampling B: multi-stage sampling C: Stratified sampling D: Systematic sampling E: Cluster sampling
Which of the following is an example of nonprobabilistic sampling? A: Simple random sampling B: Stratified simple random sampling C: Cluster sampling D: Judgment sampling
Which of the following is an example of nonprobabilistic sampling? A: Simple random sampling B: Stratified simple random sampling C: Cluster sampling D: Judgment sampling
Which of the following sampling methods does not lead to probability samples? A: stratified sampling B: cluster sampling C: systematic sampling D: convenience sampling
Which of the following sampling methods does not lead to probability samples? A: stratified sampling B: cluster sampling C: systematic sampling D: convenience sampling
Which of the following is a method of probability sampling? A: Simple random sampling B: Systematic sampling C: Stratified sampling D: All of the above are methods of probability sampling.
Which of the following is a method of probability sampling? A: Simple random sampling B: Systematic sampling C: Stratified sampling D: All of the above are methods of probability sampling.
对于下面问句回答正确的是： A: Non,iln’aimeparlerpasfrançais. B: Non,iln’aimepasparlefrançais. C: Non,ilAimeneparlerpasfrançais. D: Non,iln’aimepasparlerfrançais.
对于下面问句回答正确的是： A: Non,iln’aimeparlerpasfrançais. B: Non,iln’aimepasparlefrançais. C: Non,ilAimeneparlerpasfrançais. D: Non,iln’aimepasparlerfrançais.
The following statements about the sampling is incorrect. （ ） A: Sampling is a bridge between continuous-time signals and discrete-time signals. B: Sampling is a bridge between continuous-time system and discrete-time system. C: Sampling is a bridge between discrete-time signals and discrete-time system. D: Sampling is a bridge between the various analytical tools of the continuous-time version and discrete-time version.
The following statements about the sampling is incorrect. （ ） A: Sampling is a bridge between continuous-time signals and discrete-time signals. B: Sampling is a bridge between continuous-time system and discrete-time system. C: Sampling is a bridge between discrete-time signals and discrete-time system. D: Sampling is a bridge between the various analytical tools of the continuous-time version and discrete-time version.
Which of the following is true about the sampling distribution of the sample mean? A: The mean of the sampling distribution is always μ. B: The standard deviation of the sampling distribution is always σ. C: The shape of the sampling distribution is always approximately normal. D: D) All the alternatives are correct
Which of the following is true about the sampling distribution of the sample mean? A: The mean of the sampling distribution is always μ. B: The standard deviation of the sampling distribution is always σ. C: The shape of the sampling distribution is always approximately normal. D: D) All the alternatives are correct