# Question: Use software to analyze the U S Statewide Crime data file

Use software to analyze the U.S. Statewide Crime data file on the text CD on y = violent crime rate and x = percentage of single parent families.

a. Construct a scatter-plot. What does it show?

b. One point is quite far removed from the others, having a much higher value on both variables than the rest of the sample, but it fits in well with the linear trend exhibited by the rest of the points. Show that the correlation changes from 0.77 to 0.59 when you delete this observation. Why does it drop so dramatically?

a. Construct a scatter-plot. What does it show?

b. One point is quite far removed from the others, having a much higher value on both variables than the rest of the sample, but it fits in well with the linear trend exhibited by the rest of the points. Show that the correlation changes from 0.77 to 0.59 when you delete this observation. Why does it drop so dramatically?

## Answer to relevant Questions

Refer to the High School Female Athlete and Male Athlete Strength data files on the text CD. a. Find the correlation between number of 60-pound bench presses before fatigue and bench press maximum for females and between ...A study of 375 women who lived in pre-industrial Finland (by S. Helle et al., Science , vol. 296, p. 1085, 2002) using Finnish church records from 1640 to 1870 found that there was roughly a linear relationship between y = ...Refer to the Georgia Student Survey data file on the text CD. Treat college GPA as the response variable and high school GPA as the explanatory variable, and suppose these students are a random sample of all University of ...For a population regression equation, why is it more sensible to write μy = α + βx instead of y = α + βx? Explain with reference to the variables x = height and y = weight for the population of girls in elementary ...The table shows the approximate U.S. population size (in millions) at 10-year intervals beginning in 1900. Let x denote the number of decades since 1900. That is, 1900 is x = 0, 1910 is x = 1, and so forth. The exponential ...Post your question