Question

In: Statistics and Probability

A researcher is interested in whether music tastes differ by personality type. The table below presents...

  1. A researcher is interested in whether music tastes differ by personality type. The table below presents the observed and expected frequencies. Does a statistically significant relationship exist between personality type and music preference? Conduct a hypothesis test to see. Follow the five-step model with an alpha level of 0.05. Make sure to go through each step and interpret the results in terms of the research question above.

Round to twoplaces past the decimal point for your calculations and final answers.

Observed Frequencies

Personality Type

Music

Introverts

Extroverts

Total

One Direction

80

252

332

Mumford & Sons

357

148

505

Lorde

183

180

363

Total

620

580

1200

Expected Frequencies

Personality Type

Music

Introverts

Extroverts

Total

One Direction

171.53

160.47

332

Mumford & Sons

260.92

244.08

505

Lorde

187.55

175.45

363

Total

620

580

1200

Solutions

Expert Solution



Related Solutions

A researcher is interested in investigating whether living situation and pet ownership are dependent. The table...
A researcher is interested in investigating whether living situation and pet ownership are dependent. The table below shows the results of a survey. Frequencies of Living Situation and Pet SingleFamilyCouple Dog809171 Cat1039872 Various444342 None685942 What can be concluded at the αα = 0.05 significance level? What is the correct statistical test to use? Paired t-test Homogeneity Goodness-of-Fit Independence What are the null and alternative hypotheses? H0:H0: Pet ownership and living situation are independent. Pet ownership and living situation are dependent....
A psychologist is interested in testing whether there is a difference in the distribution of personality...
A psychologist is interested in testing whether there is a difference in the distribution of personality types for business majors and social science majors. The results of the study are shown in the table below. Conduct a test of homogeneity. Test at a 5% level of significance. Open Conscientious Extrovert Agreeable Neurotic Business 40 52 48 63 56 Social Science 71 74 61 80 63 What is the test statistic? (Round your answer to two decimal places.) Part (f) What...
A social psychologist is interested in if the type of music a college student is listening...
A social psychologist is interested in if the type of music a college student is listening to has any effect on the number of hours per week the student studies. A group of college students identified to one of four types of music: rock and roll, jazz, country, and showtunes. Ten students were selected for each group. In addition to this the psychologist wondered if gender would have an impact on the hours studying as well so each of the...
A researcher is interested in how personality types are influenced by distractions. Individuals were selected to...
A researcher is interested in how personality types are influenced by distractions. Individuals were selected to represent two different personality types: introverts and extroverts. Half of the participants in each group were tested in a noisy room, filled with distraction, whereas the other half were tested in a quiet, calm room. The researcher was measuring the number of errors committed by each individual. He found that introverted personalities in a quiet room scored an average of 7, introverted personalities in...
A researcher is interested in whether or not there is a difference in student’s performance based...
A researcher is interested in whether or not there is a difference in student’s performance based on the study methods they use. Participants are assigned one of three different study methods (read the text and re-read it, read and answer prepared questions, and read then create your own questions). There are 6 people in each group and the researcher measures the participants’ performance on a test. Perform a hypothesis test and show all four steps. Hints: Use a two tailed...
How might a person with Type A personality differ in their stress levels than person with...
How might a person with Type A personality differ in their stress levels than person with a Type B personality
A researcher is interested in how music can impact exercise. She wants to know if different...
A researcher is interested in how music can impact exercise. She wants to know if different types of music affect how many pushups a group of adolescents can do. She randomly assigns 20 adolescents to one of three groups: control (Other usual sounds you would hear at a gym), pop music, or hip-hop. Participants listen to their respective tracks starting 2 minutes before an assistant waves their arm to begin. The research assistant counts the number of pushups each participant...
7. Below are research scenarios. For each, indicate whether the researcher committee a Type 1 error,...
7. Below are research scenarios. For each, indicate whether the researcher committee a Type 1 error, a Type 2 error, or no error in hypothesis testing (a) Assume there is a strong, positive relationship between variable X (number of hours per week a child reads for pleasure) and variable Y (language arts scores in the classroom) in the population of 3rd grade students in the United States. As with any educational study, researchers investigating the relationship between X and Y...
A family researcher is interested whether there is an association between the number of siblings a...
A family researcher is interested whether there is an association between the number of siblings a person has and the number of children they have. She interviews six older adults and finds the following information. Number of Siblings Number of Children 0 1 1 1 2 1 2 0 3 3 4 3 Mean Number of Siblings = 2 Mean Number of Children = 1.5 Standard Deviation = 2 Standard Deviation = 1.5 Explain which variable more naturally plays the...
A researcher is interested in determining whether there is a correlation between number of packs of...
A researcher is interested in determining whether there is a correlation between number of packs of cigarettes smoked # packs of cigarettes smoked (X) (Y) 0 80 0 70 1 72 1 70 2 68 2 65 3 69 3 60 4 58 4 55 day and longevity (in years). n=10.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT