Which of the following is the best approach to code the missing values in a data set??
A. ?Indicate missing values with nonnumeric characters.
B. ?Set any numerical codes for missing values to some other character.
C. ?Enter 999 or -1 as the missing values.
D. ?Do not enter any value.
Answer: B
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Refer to Table 2-14. Scotland has a comparative advantage in the production of
A) motorcycles. B) guitars. C) both products. D) neither product.
If a U.S. firm produces cars in Mexico, that production should count towards
A) Mexico's GNP. B) U.S. GDP. C) U.S. GNP. D) It will not affect either U.S. GNP or U.S. GDP.
The BLS obtains employment information from a monthly survey of a sample of approximately 60,000 households
Indicate whether the statement is true or false
Children of female heads of households are five times more likely to live in poverty than other children
a. True b. False