The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minute. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes. At a .05 level of significance, it can be
concluded that the mean of the population is _____.
a. significantly greater than 3
b. not significantly greater than 3
c. significantly less than 3
d. significantly greater than 3.18
a
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Consider Figure 5.2. ABC Inc. sells 27 calculators at a price of $5 each, realizing profits totaling $54. Of this quantity, ABC Inc. sells ____ calculators in Canada and realizes revenues totaling $____; the firm sells ____ calculators in France and realizes revenues totaling $____.
a. 15, 35, 9, 45 b. 15, 45, 9, 35 c. 21, 105, 6, 30 d. 21, 30, 6, 105
Price elasticity is generally a negative number because _____
a. demand is elastic b. demand is unitary c. demand is inelastic d. of the law of demand
Which of the following would be the BEST closing sentence in a bad-news message?
a. We understand your disappointment in this decision. b. Please do not hesitate to contact us again if you have any further questions. c. To see the video that discusses our two newest investment offers, just phone us at 555-1616 to request your copy. d. We trust you will continue to rely on Carson products in spite of this present difficult situation.
______ are people who start several businesses, sometimes at the same time or sometimes one after the other.
a. Social entrepreneurs b. Serial entrepreneurs c. High-risk entrepreneurs d. Low-risk entrepreneurs