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Facial expression study. What do people infer from facial expressions of emotion? This was the research question of interest in an article published in the Journal of Nonverbal Behavior (Fall 1996). A sample of 36 introductory psychology students was randomly divided into six groups. Each group was assigned to view one of six slides showing a person making a facial expression.∗ The six expressions were (1) angry, (2) disgusted, (3) fearful, (4) happy, (5) sad, and (6) neutral faces. After viewing the slides, the students rated the degree of dominance they inferred from the facial expression (on a scale ranging from -15 to +15). The data (simulated from summary information provided in the article) are listed in the table.
(a) Conduct an analysis of variance to determine whether the mean dominance ratings differ among the six facial expressions. Use α = .10
(b) Use Tukey's method to rank the dominance rating means of the six facial expressions. (Use an experimentwise error rate of α = .10.)
Under the assumption that the food expert is correct, what would be the probability of a "taste-off" in which 110 or more of the subjects preferred soft drink A?
q1. average adult american are about one inch taller but nearly a whopping 25 pounds heavier than they were in 1960
What is the importance of hypothesis testing for independence of variables using two-way tables? Is there an example of this for a better understanding?
In Part A of this assignment, you selected a random sample of 30 StatCrunch U students and created a StatCrunch file containing data from the above survey for those students. You will use the StatCrunch data file you created in Part A to complete thi..
a. If the Ulleval University Hospital in Oslo requires special treatment for newborn babies weighing less than 2700 g, what is the percentage of newborn babies requiring special treatment?
the quality-control manager at a light bulb factory needs to determine whether the mean life of a large shipment of
From an urn containing balls, a ball was drawn, weighted and replaced. This experiment was repeated 5 times. what is the standard error of sample mean?
Utilizing your charts stated whether the filling operation has been in control for every of the 18 operating hours this day.
Gino Petralli is an enterprising businessman. He is in the process of starting up a pizzeria. Specifically, he needs to know if 10 tables in his dining area is enough
how large of a sample n would you need to estimate p with margin of error 0.01 with 95 confidence? use the guess p0.05
Determine (a) the probability someone is under 30,- the probability that someone has a high income given that they are under 30,and the probability of someone having a low income given that they are under 30.
Identify 5 variables of interest to healthcare managers. Select and define one variable and include your rationale for selecting this variable. What is the difference between a dependent and independent variable?
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