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researcher wants to determine if exposure to subliminal (unconscious) images depicting older adults (80-95 years old) will influence the time it takes pedestrians to get across a busy intersection using a crosswalk. A random sample of sixty pedestrians are exposed to a set of subliminally presented positive images

researcher wants to determine if exposure to subliminal (unconscious) images depicting older adults (80-95 years old) will influence the time it takes pedestrians to get across a busy intersection using a crosswalk. A random sample of sixty pedestrians are exposed to a set of subliminally presented positive images

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A researcher wants to determine if exposure to subliminal (unconscious) images depicting older adults (80-95 years old) will influence the time it takes pedestrians to get across a busy intersection using a crosswalk. A random sample of sixty pedestrians are exposed to a set of subliminally presented positive images using a special electronic traffic signal before the signal prompts them to cross. From previous studies (using the same crosswalk and intersection), the experimenter knows that when no subliminal images are presented, the average time it takes the city’s population to cross is 30.5 seconds, with a standard deviation = 5.5 seconds.

**Study on the Influence of Subliminal Images on Pedestrian Crossing Time** A researcher aims to assess whether exposure to subliminal images of older adults (ages 80-95) influences the duration pedestrians take to cross a busy intersection using a crosswalk. A sample of sixty pedestrians is exposed to subliminally presented positive images with a specialized electronic traffic signal before it prompts them to cross. Previous studies, using the same crosswalk and intersection, have established that the average crossing time for the city's population without subliminal images is 30.5 seconds, with a standard deviation of 5.5 seconds. **Examining Distracting Speech's Impact on Driving Performance** Researchers are testing whether the content of distracting speech affects driving performance. Subjects undergo a driving test in a simulator while exposed to three distraction types: an audiobook mystery (AM), a conversation between friends (CF), and a political speech (PS). Eight participants are randomly assigned to one of the three conditions, and researchers record the number of errors made during the simulation. **Investigation of COVID-19 Vaccination Rates Among College Students** According to the Centers for Disease Control, 60.9% of college students nationwide are fully vaccinated against COVID-19. The goal is to determine if the national average reflects the mean vaccination rate among college students in San Francisco. A random sample of 48 college students from San Francisco is recruited to explore this research question.
Transcribed Image Text:**Study on the Influence of Subliminal Images on Pedestrian Crossing Time** A researcher aims to assess whether exposure to subliminal images of older adults (ages 80-95) influences the duration pedestrians take to cross a busy intersection using a crosswalk. A sample of sixty pedestrians is exposed to subliminally presented positive images with a specialized electronic traffic signal before it prompts them to cross. Previous studies, using the same crosswalk and intersection, have established that the average crossing time for the city's population without subliminal images is 30.5 seconds, with a standard deviation of 5.5 seconds. **Examining Distracting Speech's Impact on Driving Performance** Researchers are testing whether the content of distracting speech affects driving performance. Subjects undergo a driving test in a simulator while exposed to three distraction types: an audiobook mystery (AM), a conversation between friends (CF), and a political speech (PS). Eight participants are randomly assigned to one of the three conditions, and researchers record the number of errors made during the simulation. **Investigation of COVID-19 Vaccination Rates Among College Students** According to the Centers for Disease Control, 60.9% of college students nationwide are fully vaccinated against COVID-19. The goal is to determine if the national average reflects the mean vaccination rate among college students in San Francisco. A random sample of 48 college students from San Francisco is recruited to explore this research question.
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