Null ans null - Study guides, Class notes & Summaries

Aim Ans: General statement of why the study is being carried out. Null Hypothesis Ans: An assumption that there is no relationship between the variables. E.g. There is no relationship between age and intelligence. Directional hypothesis (one-tailed) Ans: States the kind of relationship between two conditions. E.g. People who do homework without the TV on produce better results than those who do homework with the TV on. Non-directional hypothesis (two-tailed) Ans: Simply predicts tha...

Chapter 3: The Relational Database Model TRUE/FALSE 1. The practical significance of taking the logical view of a database is that it serves as a reminder of the simple file concept of data storage. ANS: T PTS: 1 2. You can think of a table as a persistent representation of a logical relation. ANS: T PTS: 1 3. Because the relational model uses attribute values to establish relationships among tables, many database users correctly assume that the term relation refers to such relationships. ...

NY REAL ESTATE EXAM REVIEW QUESTIONS |Latest Release| Graded A+ 1-A broker legitimately may pay all or part of Real estate commission to a a. seller b. salesperson c. buyer d. friend who provides a listing lead *Ans* -B: Salesperson can accept compensation only from their sponsoring broker. 2-The minimum age for a New York real estate broker's license is a. 19. b. 18. c. 20. d. 21. *Ans* C. As of July 1,2008 to become a broker you must be 20 years old. 3-Which of the following ac...

C170 Final Exam |Question and Answer| 100% Correct A salesperson is authorized to sell many products and a product can be sold by many salespersons. Which kind of binary relationship does this scenario describe? *Ans* Many-to-many Which two examples are attributes? *Ans* An employee number A meeting code Which delete rule sets column values in a child table to a missing value when the matching data is deleted from the parent table? *Ans* Set-to-Null member_id INT UNSIGNED NOT NULL AU...

In a cause and effect relationship, which is the independent variable? A. outcome B. cause - In causal relationships the IV is the cause, affecting the DV C. effect D. relationship - ANS B. Cause- Which of the following steps would NOT be undertaken in a non-experimental quantitative study? A. developing methods for safeguarding human subjects B. developing intervention protocol C. undertaking a literature review D. determining the number of subjects to recruit - ANS ...

WGU Data Driven Decision Making - C207 Exam Questions And Answers Activities (RBM stage) - ANS second step involves the process that converts inputs to outputs (actions necessary to produces results - training, evaluating, developing) Alternative hypothesis - ANS The argument that either a sample is not equal to, greater than, or less than the hypothesized null sample Analysis of Variance (ANOVA) - ANS a technique used to determine if there is a sufficient evidence from sample...

Immunology 4 Exam Review 2024 Qs&As Cluster of Differentiation - ANS-CD stand for The thymus is embryologically derived from the - ANS-Pharyngeal pouches Secondary tissues on the body - ANS--Spleen -Lymph nodes -Intestine: Peyer's patches The process of aging causes the thymus to - ANS--Decrease in size -Lose cellularity Natural Killer Cells - ANS--Produce interferon -Produce IL-2 -Were previously called null cells T lymphocytes - ANS-Cellular immune response B lymphocytes - ANS-Hum...

CS430 Midterm 2 Exam Practice Questions and Answers One key difference between a natural join and an inner join is: - Ans:-the number of columns returned We define a view in SQL by using the create view command. - Ans:-True To remove an authorization, we use the ________________command. - Ans:-revoke Views are considered updatable if which of the following conditions are satisfied: - Ans:-The from clause only had one database relation The select clause contains only attribute names of th...

CS 430 Database System Exam Practice Questions and Answers What are the data structures the storage manager implements as part of the physical system? - Ans:- -Data files -Data dictionary -Indices I've just added a new person to the Employee database and I did not have to alter my application that uses this database. This is an example of which type of abstraction? - Ans:-Logical T/F: An object-oriented data model permits the specification of data where individual data items of the s...

Epic Bridges 101 Exam Questions and Answers 2 Does every HL7 message have to be encoded with the characters |^~& ? - ANS No, the encoding characters can be any printable character. 2 Imagine that your message begins with MSH|^~&|. How would you encode the string "The result is positive & has a value of 2.7 x 10^3."? - ANS The result is positive T has a value of 2.7 x 10S3. 2 Why is the NTE segment special? - ANS Context; its meaning depends on the segment it follows. ...