STAT 200 PSU Quiz 5 STAT 200 PSU Quiz 5

1.

Which of the following statements best describes the relationship between a parameter and a statistic?

[removed]A) A parameter has a sampling distribution with the statistic as its mean. 
[removed]B) A parameter has a sampling distribution that can be used to determine what values the statistic is likely to have in repeated samples. 
[removed]C) A parameter is used to estimate a statistic. 
[removed]D) A statistic is used to estimate a parameter. 

Feedback: An underlying theme of statistics is to use statistics to estimate a parameter.

2.

Which of the following statements is correct about a parameter and a statistic associated with repeated random samples of the same size from the same population?

[removed]A) Values of a parameter will vary from sample to sample but values of a statistic will not. 
[removed]B) Values of both a parameter and a statistic may vary from sample to sample. 
[removed]C) Values of a parameter will vary according to the sampling distribution for that parameter. 
[removed]D) Values of a statistic will vary according to the sampling distribution for that statistic. 

Feedback: The population parameter does not vary, however, the values of the statistic will vary based on the sampling distribution of that statistic