(b) Faculty ID number (c) Assessed value of a car \" () Cell phone numbera (e) N
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(b) Faculty ID number (c) Assessed value of a car " () Cell phone numbera (e) Namber on a football player's jersey vt 5. (5) Determine whether the study depicts an observational study or an experiment. (a) (2.5) Dogs are randomly divided into Circle your ans is trained using sound s trained using sound cues. Afeups. One group is trained using food as a reward; the other cues. After 2 months comma each group is taught a new skill to compare obedience. (A) Observational study (B) Experiment (b) (2.5) A poll is conducted by a school's math department in which ninth-grade students are asked if they prefer to be in their math class or their science class (A) Observational study (B) Experiment 6. (15) A school psychologist wants to test the effectiveness of a new me recruits 200 fifth-grade students and randomly divides them into two groups. means of the newmethod, while group 2 is taught by traditional to teach both groups. At the end of the year, an achievement test is admin two groups are compared thod of teaching music. She Group I is taught by istered and methods. The same teacher is assigned the results of the (a) (2) What is the response variable in this experiment? (b) (1) Is the response variable qualitative or quantitative?Explanation / Answer
In observational study individuals and variables of interest does not attempt to influence the responses.
In experimental study treatment on individuals is in order to observe their responses and studies whether the treatment causes change in the response.
(5)(a)The study is an Experimental study examines individuals in a sample and try to influence the response variable.
(b)The study is an observational study examines individuals in a sample, but does not try to influence the response variable.
(6)
Response variable: The changes in an experiment are made to the independent variable the responses that happen as a result of those deliberate changes are the response variables.
(a) Response variiable is the score on the achievement test.
(b)Qualitative variables take on values that are names or labels and quantitative variables are numeric and they represent a measurable quantity.
In this case test score will be numeric and hence it will be called quantitative varaible
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