P value refers to the probability that (F test or T or other test quantity) is greater than the required value, and generally less than a given α means that the test is significant, P = P(| U |>；; =|u|)=|uα/2|)=α.
R value is a goodness of fit index, which is used to evaluate the fitting quality of the model. The range of values is-1, 1, and the closer to plus or minus 1, the better. R square =SSR/SST, where SSR is the sum of squares of regression and SST is the sum of squares of total deviation.
Extended data:
Statistical professional ability:
1, with a solid mathematical foundation and strict scientific thinking training.
2, master the basic theory of statistics, basic knowledge, basic methods and computer skills; Have the basic ability to collect data, design questionnaires and process survey data.
3. Understand the basic knowledge of natural science, social science and engineering technology related to socio-economic statistics, medical and health statistics, biostatistics or industrial statistics, and have the preliminary ability to apply statistical theory to analyze and solve practical problems in this field.
4. Understand the development trend and application prospect of statistical theories and methods.
5. For the bachelor of science, you should be proficient in using various statistical software packages and have strong statistical calculation ability; For the bachelor of economics, it is necessary to have a solid economic foundation and the ability to use information for comprehensive analysis and management.
6. Master the basic methods of information inquiry, document retrieval and obtaining relevant information by using modern information technology; Have certain scientific research and practical work ability.