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Goods are intangible

Do types of crimes reported on television newscasts differ by the age of the criminals? A researcher uses the data below and calculates 2 = 11.4. What should his conclusion be?

  A researcher is interested in sentencing dispositions and their relationship with the severity of a crime. She asked a sample of 10 prospective jury members to rate the seriousness of a crime on a scale of 1 to 7 along with the sentence in years that they would recommend. What is the slope of the regression line?

What is the purpose of the chi-square test?

A legal researcher wanted to measure the effect of the length of the criminal trial (mean = 3 days) on the length of jury deliberation (mean = 5 days). He conducted a bivariate OLS regression on a sample of 10 trials, and found that every one day increase in the trial length is associated with a 1.03 day increase in jury deliberation. How many days of jury deliberation would we expect when the trial lasted 0 days?

Which of the following is the correct interpretation of the slope for ethnic heterogeneity?

A researcher finds a correlation between high school detentions and college GPA of r = -0.18. Which of the following statements best characterizes his results?

Below is a scatterplot of X and Y. Which of the following is the best estimate of the coefficient of determination?  

Nonparametric tests have less __________ but more ___________ than parametric tests.

A researcher wants to know if there is a significant relationship between job experience and job stress. From a sample of 10 correctional officers, she collects data on the number of years of work experience and job stress measured on a scaled ranging from 0 to 10.  What is the critical value of t for testing this correlation, assuming an alpha of 0.05?