Which of the following statements about questionnaire design is incorrect?
a. In the introduction section, one should include a general description of the study.
b. One should ask the easy questions first before going to more specific questions
c. In a given section of the questionnaire, one should mix and match different measurement formats to keep the respondent's interest
d. Personal questions should be asked at the end of the survey
e. One should end the survey with a thank you statement
Answer: c. In a given section of the questionnaire, one should mix and match different measurement formats to keep the respondent's interest
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In 2004, environmental groups blamed the ________ for the increase in toxic chemicals released into the environment
A) lack of awareness of environmental problems B) increase in global warming C) lax standards of the Bush administration D) lax standards of the Environmental Protection Agency
Convert the following linear program into the simplex form:
Minimize 3x1 + 2x2 Subject to: 7x1 - 2x2 0 5x1 + x2 10 x1 + 7x2 12 3x1 + 3x2 = 16 x1, x2 ? 0