1. DRQ #10 AGEC pts October 17, 2013
(1 pt) 1. Calculate the median of the following sample of observations for a variable labeled DTV: 18, 10, 15, 13, 17, 15, 12, 15, 18, 16, 11 (1/2 pt) 2. (a) Other things the same, simple models generally are preferable to complex models. This statement reflects the principle of . (1/2 pt) (b) The is a measure of the degree of linear association between two variables.

2. 3. Concerning descriptive statistics of variable indigenous to regression analysis: (1/2 pt) (a) The skewness coefficient for the variable PSE is .45. The distribution of PSE has a tail on the . (1/2 pt) (b) The kurtosis coefficient for any normal distribution is . (1/2 pt) (c) If the mean for a particular variable is equal to 16, and if the standard deviation is equal to 4, then the coefficient of variation is equal to . (1/2 pt) (d) Name the statistic to conduct tests normally.