Observational Studies and Experiments PracticeExplanatory2 pointsWhat are the effects of repeated exposure to an advertising message? The answer may depend on both the length of the ad and on how often it is repeated. Anexperiment investigated this question using undergraduate students as subjects. All subject viewed a 40-minute television program that included ads for adigital camera. Some subjects saw a 30-second commercial; others a 90-seconds version. The same commercial was shown either 1, 3, or 5 times during theprogram. After viewing, all the subjects answered questions about their recall of the ad, their attitude toward the camera, and their intention to purchase it.Identify the explanatory and response variables.Possible answersNo Answers Chosenattitude towards cameraintention to purchase the camera6Responselength of commercialNo Answers Chosennumber of timesReturnOSubmit

There are two types of variables, they are independent and dependent variable. Independent variable…

Answered: What are the effects of repeated…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Mandrake Falls High School is experimenting with a weekend course in laboratory techniques. Of the 200 students enrolled in lab classes at Mandrake, only 78 have been able to take the techniques course. Mandrake is interested in evaluating the course's effectiveness in propagating safety in the laboratories. During regular lab classes, lab instructors have recorded harmful lab incidents: accidents, misuse of lab equipment, etc. The school is looking at the data and examining two variables: laboratory performance ("involved in no incident", "involved in exactly one incident", or "involved in 2+ incidents") and status regarding lab techniques course ("took the techniques course" or "didn't take the techniques course"). The contingency table below gives a summary of the data that have been gathered so far. In each of the 6 cells of the table are three numbers: the first number is the observed cell frequency (f); the second number is the expected cell frequency (E) under the assumption…
What research method is being used? A Is it observation B participant observation C interview D survey E experiment

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