The smoking problem among minors
It Haiti now not Hispaniola
the island chain called the Caribbean
Answer: Wendy did not use random assignment
Explanation: Wendy's failure to randomly assign participants or subject to his research will pose a threat to the internal validity of his study. The internal validity of a study simply refers to the structure of an experiment and it's trustworthiness in establishing causal relationship between the applied treatment used a study and the observed outcome. Wendy's decision to ignore random assignment and opt for a manual assignment of subject to each treatment will pose a threat to the structure of his study and hence the establishment of a causal relationship between the treatment t and outcome of the study.
Answer: C. foreign goods to be more expensive to residents of foreign nations
Explanation: When the dollar price rises in a country that the official currency is not the dollar, purchase of foreign goods becomes expensive.
For example, if in a country like Nigeria, 1 dollar equals 360 Naira and a resident has been purchasing goods outside Nigeria using the dollars, if 1 dollar increases to 400 naira, that becomes more expensive for the Nigerian (foreigner). Because the Nigerian now have to cough out 400 naira for 1 dollar as against the for 360 naira for 1 dollar.
Answer:
He served in the Mexican American war
