Exam 10: Analysis of Quantitative Data

Ten college students, five males and five females, took a test on geography knowledge with 20 questions. The number correct is listed below. Which of the following is TRUE, if any?

Given the following 6 men's shoe sizes: 9, 10, 10, 8, 12, 11 -The MODE is

Why is knowing the variability or dispersion of a variable as important as knowing its central tendency?

Talk about: -median

Talk about: -Type II error

Talk about: -code sheets

Given the following 6 men's shoe sizes: 9, 10, 10, 8, 12, 11 -The MEAN is

Talk about: -frequency polygon

Refer to the information provided in Table 10.3 below to answer the questions that follow. Table 10.3: Annual Family Income and Education* Statistics for Three Neighborhoods * 4 yrs college = 16 yrs; masters/law degrees = 18 yrs; PhD/MD degrees = 20 yrs. -Which neighborhood(s) has a skewed income distribution?

Professor Hogshead found a statistically significant relationship between variable X and variable Y. It is statistically significant at the .05 level. What does this mean?

Talk about: -covariation

Talk about: -Type I error

Talk about: -skewed distribution

Explain how a researcher uses a codebook in quantitative research and two ways to "clean" the quantitative data prior to analysis.

Talk about: -marginals

What are the differences between the mean, median, and mode? How are they affected by a normal versus a skewed distribution of data?

Describe three ways a researcher can display information on one variable.

Given the following 6 men's shoe sizes: 9, 10, 10, 8, 12, 11 -The MEDIAN is

What features of a bivariate relationship can be seen from a scattergram?

Talk about: -explanation pattern