z-value, say 1.96, then this amounts to
a. support for the null hypothesis; the two percentages are different.
b. no support for the null hypothesis; the two percentages are not different.
c. support for the null hypothesis; the two percentages is not different.
d. no support for the null hypothesis; the two percentages are different. e. None of the
above.
In the randomized response model, which of the following questions would NOT be
appropriate for pairing with this question: “Have you ever shoplifted?”
a. “Were you born prior to 1960?”
b. “Do you cheat on your income taxes?”
c. “Is your birthday in September?”
d. “Are you male or female?”
e. All of the above could be paired with the question.
You are the product manager for Buckstars Coffee, a nationally distributed brand.
Buckstars has been declining in absolute level of sales for the last four consecutive
months. You ask the marketing research department to do a study to determine why
sales have declined. The most appropriate research strategy is:
a. An experimental study.