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3. (SPSS) A criminal psychologist wants to examine the level of narcissistic personality traits between those who are diagnosed with antisocial personality disorder (ASPD) and those who do not qualify for ASPD. She administers a measure of narcissistic personality traits where higher scores indicate higher levels of narcissism and scores range from 0-35. ASPD Diagnosis No ASPD Diagnosis 23 11 19 21 22 9 16 27 31 31 10 8 19 13 6 4 9 15 11 7 a. Create a new SPSS data file for these scores. Your file must have 2 variables: diagnosis and score. Your diagnosis variable must be set up as a 1-column grouping variable with 2 groups (diagnosis, no diagnosis) coded numerically. This will be much like the gender variable you created in a previous module/week. For example, if you code ASPD Diagnosis as 1 and No ASPD Diagnosis as 2, then the SPSS file will appear somewhat like the following: Column 1 Column 2 "Diagnosis" "Score" 1 23 1 11 1 19 All ASPD Diagnosis scores from the table above will appear in a similar fashion. Then, enter No ASPD Diagnosis information as: 2 10 2 8 2 19 Continue in this fashion to the end of the file. b. Compute descriptive statistics by diagnosis (that is, for each of the two groups in one table) using similar steps to those covered in Green and Salkind's Lesson 21 and in the Module/Week 3 presentation (HS GPA scores by Gender). Paste this into your homework document. c. Construct a boxplot to show the difference between the mean scores of the 2 groups.
Using the confidence interval method, test the claim that the average age of consumers is at least 30 years ( α= 0.05). Test the same claim by using the test statistics method ( Z or T test).
Can you think of an example where the analysis of variance (ANOVA) can be used? How is ANOVA being used in the workplace, or how should it be used?
A bowl contains 16 chips, of which 6 are red, 7 are white, and 3 are blue. If four chips are taken at random and without replacement, find the probability that: there is at least one chip of each color.
A fast-food franchiser is considering building a restaurant at a certain location. Based on financial analysis, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour.
Form the cumulative percentage distribution and plan a cumulative percentage polygon.
A bank wants to get new customers for their credit card. They try two different approaches in their marketing campaign. The first promises a "cash back" reward; the second promises low interest rates. A sample of 500 people are mailed the first br..
When testing for a difference between the means of a treatment and a placebo group, the computer display below is obtained. using a 0.05 significance level, is there sufficient evidence to support the claim that the treatment group (variable 1) co..
a. What decision would maximize expected profits? b. What is the maximum amount that should be paid for a perfect forecast of the economy?
The probability that a house in an urban area will be burglarized is 5%. If 50 houses are randomly selected, what is the probability that one of the houses will be burglarized?
Find a 99% confidence interval for the population mean number of weekly miles.
Normal distribution with a mean of 8.1 minutes and a standard deviation of 1.9 minutes. For a randomly received emergency call, find the following probabilities. The response time is between 5 and 10 minutes
stratum 3 contains 1,000 invoices, and stratum 4 contains 3,450 invoices. A sample of 500 sales invoices is needed. What type of sampling should you do? Why?
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