A supermarket administrator suspects that idle time is about 20 percent for the cashier and 15 percent for the office clerk
If the administrator wants a 95 percent confidence level (z = 1.96 ) and a degree of precision of + 0.05 for both cashier and office clerk, how many TOTAL observations are needed?
A) fewer than or equal to 200
B) greater than 200 but fewer than or equal to 300
C) greater than 300 but fewer than or equal to 400
D) greater than 400
B
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Which of the following statistics is not permissible with ordinally scaled data (Table 8.1 in the text)?
A) range B) mode C) rank order correlation D) all of the above
Which of the following is not an organization that provides alternative dispute resolution services for firms of different nations?
A) the United Nations Commission of International Trade Law B) the London Court of International Arbitration C) the Munich Tribunal of International Mediation D) the International Chamber of Commerce