A researcher hypothesized that anincrease in stress at work was caused byan increase in consumption of alcohol.Further research found that increasedconsumption of alcohol was caused byincreased work stress. This is an exampleofO ala reverse cause-and-effectrelationshipa presumed cause-and-effectrelationshipan accidental cause-and-effectc)relationshipd)a cause-and-effect relationshipO b)

The hypothesized statement is that an increase in stress at work was caused by an increase in…

Answered: A researcher hypothesized that an…

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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Similar questions

Indicate which correlation coefficient represents a stronger relation between two variables A) -.85 B) +.65 C) 0.00 D) -.70
b) The table below shows the number of absences in a class and the final exam grade of 7 randomly selected students. At 5% level can we say that there is a significant linear relationship between X and Y? Student number of absences (X) final exam grade (Y). 1 2 4 5 1 6 3 3 95 90 90 55 70 80 85 d) Decision Rule e) Test Statistics f) Decision g) Conclusion
What is the correlation between X and Y? a) 1.0 b) -1.0 c) 0.0 d) -0.5
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A strong positive correlation means: the points in a scatter diagram lie on a downward sloping line O the points in a scatter diagram lie on an upward sloping line O ris close to -1 O ris close to 1
A cognitive psychologist conducted a study of whether familiarity of words (X) predicts the time it takes (in seconds) to press a button indicating whether the word is singular or plural (Y), with all participants being given the same words. Familiarity with these words was rated at a later time on a 7-point scale (with higher numbers indicating more familiarity). The participants' scores were: X : 6, 2, 5 ,3 ,7 Y : 0.3 , 1.5 , 0.8 , 1.4 ,0.1 a.Figure the correlation coefficient Describe the correlation Figure the linear prediction rule; list the b value, a value and the final formula Predict the time it takes to press a button if the familiarity with the word is 1
A study was undertaken to determine whether there was a significant weight (in lb) loss after one year course of therapy for diabetes, and whether the amount of weight (in lb) loss was related to initial weight. The following table gives the initial weight (x) and weight after one year of therapy (y) for 16 newly diagnosed adult diabetic patients.
There is a strong correlation between the number of ashtrays in a person's home and their likelihood of having lung cancer. The more ashtrays, the more likely a person in the home is to develop lung cancer. So ... ashtrays cause lung cancer? O No, this is an example of the directionality problem O No, this is an example of both the directionality and the third variable problems O Yes, clearly there is causality here O No, this is an example of the third variable problem
A researcher is interested in explaining why suicide rates vary from state to state. She examines the relationship between suicide rates and divorce rates, basing her hypothesis on Durkheim's suicide theory. The hypothesis is that an increase in the divorce rate results in an increase in the suicide rate. Therefore, her independent variable is _______
In a random sample of adults surveyed recently in a country, researchers asked how important it is "to you personally" to have a high-paying job. A table reporting the percentages and the number of respondents by gender i Complete parts a and b below. shown below. Male Female 965 Count Extremely important Very important Somewhat important Not too important Not at all important 825 18% 16% 36% 35% 35% 40% 6% 9% 2% 2% a) What percentage of both males and females reported that being successful in a high-paying job was "Very important" to them personally? The percentage of both males and females who reported that being successful in a high-paying job was "Very important" to them personally is %. (Round to the nearest tenth as needed.)
A special education teacher did research on whether or not there is a relationship between the number of students in his class and the number incidents of “acting out” behaviors exhibited by the autistic students in the classroom. He collects data for a year and aggregates them by month. He obtained the statistics below, r= -.863 R2=.74 b= -1.212294 a= 131.176598 10.) How does the presence of more students affect the incidents in the class? a) as students are added the incidences increase b) as students are added the incidences decrease c) the number of students does not affect acting out d) the number of students caused more incidents How much of the variability of acting out is explained by the number of students in the class?___________
Consider the following scenario and answer the questions below: The ornithologist decided to investigate the effect of temperature on the migration of North American birds. Develop a hypothesis in the appropriate format. Identify the independent variable. Identify the dependent variable. Plan an investigation (what would she do to collect data?). Did she engage in basic science or applied science? Explain. Did she engage in inductive or deductive reasoning? Explain

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