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Exploratory Data Analysis.a. Perform Exploratory Data Analysis on all variables in the data set. Because you are going to focus on Extroversion and Agreeableness, be sure to include scatterplots for these combinations of variables (Student Agreeableness/Lecture Agreeableness; Student Extroversion/Lecture Extroversion; Student Agreeableness/Lecture Extroversion; Student Extroversion/Lecture Agreeableness) and include the regression line within the chart.b. Compose a one to two paragraph write up of the data. c. Create an APA style table that presents descriptive statistics for the sample.2. Make a decision about the missing data. How are you going to handle it and why?3. Correlation. Perform a correlational analysis on the following variables: Student Extroversion, Lecture Extroversion, Student Agreeableness, Lecture Agreeableness.a. Ensure you handle missing data as you decided above.b. State if you are using a one or two-tailed test and why.c. Write up the results in APA style and interpret them.
A researcher studies the relationship between political attitudes and income. He/she finds that those with higher income are more conservative.
What is the probability that all three are white? Given that three white chips are selected from II, what is the probability that two white chips were transferred from I?
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
During the 2004 election year, new polling results were reported daily. In an IBD/TIPP poll of 910 adults, 503 respondents reported that they were optimistic about the national outlook, and The President's leadership index jumped 4.7 points to 55...
Use Are the data statistically significant at the given level of significance? Based on your answers, will you reject or fail to reject the null hypothesis?
The number of hurricanes that are formed during each hurricane season can be modeled using the Poisson probability distribution. History suggests that the average if number of hurricanes formed during a year is 6.0 hurricanes.
Two groups were polled about their attitudes towards capital punishment. In one group 30 out of 100 favored capital punishment, and in the other group 40 out of 80 favored capital punishment. Calculate an appropriate test value to test the hypothesis..
Determine and interpret a 95% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day.
Compute the expected value of perfect information. Do you think it would be worth trying to obtain additional information concerning which scenario is likely to occur?
What kind of model is the above model and what factors are un-estimable? What is the resolution and why - determine the active factors that affect the light intensity.
Test to see if four population means are the same or different. Assume the populations are normally distributed and have equal variances. Use the formal hypothesis-testing model. State the conclusion in statistical terms and in conversational English..
Commercial A was selected by 45 out of 100 women and 80 out of 140 men. A large-sample 95% confidence interval for this difference is?
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