二一年度全国统计专业技术中级资格考试（Second annual national statistical professional technology intermediate qualification examination）.doc

二一年度全国统计专业技术中级资格考试（Second annual national statistical professional technology intermediate qualification examination） The document comes from the network, it is my own collection organized, if have omitted, the error, still asks everyone to correct! The national technical intermediate qualification examination for statistical professional technology of the year 2000 Basic theory of statistics and related knowledge papers 1. When you get the test paper, you will get a special answer sheet. All the questions must be answered on the special answer sheet, and no scores are scored on the test paper or draft paper 2. Please read the question carefully and aim at the question number There are four alternative answers to each of the following questions, only one of which is correct This is a total of 40 points ) Study how to use sample data to infer statistical methods of general characteristics () A. descriptive statistics b. theoretical statistics C. Inference statistics. Application statistics 2. The following options are classified as () A. service satisfaction b. employee number C. Native place D. Profit 3. In the sample survey, sample size means () A. The number of samples of B C. The size of the sample box. D. Possible number of samples 4. The survey method of sampling units at regular intervals in the sampling frame is () A. organize sampling b. system sampling C. Stratified sampling D. Simple random sampling 5. The number of data in a given category is called () A. mean b. mode C. Standard deviation D. Frequency 6. The second type of error in the test is to refer to (). A. accept the correct original hypothesis b. reject the correct original hypothesis C. Accept the false assumption D 7. When the general population is normal, the variance is known, the sample size is 40, and the mean test should be carried out A. caside b.t. C.F.D.Z 8. The most closely related values of the following four correlation coefficients are () A. 0.6 b. 0.91 C. -0.8d. -0.95 9. Measures th