Previous research shows that 60 percent of adults who drink non-diet cola prefer Coca-Cola to Pepsi. Recently, an independent research firm questioned a random sample of 25 adult non-diet cola drinkers
That chance that 20 or more of these people will prefer Coca-Cola is:A) essentially zero.
B) 0.0199.
C) 0.0294.
D) None of the above
C
Business
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A broker must ALWAYS have a proper written mutual agreement from the seller and buyer before returning earnest money under a contract termination.
a. true b. false
Business
An industrial engineer is conducting a time study for a work element. The select time is 4.5 minutes, and the sample standard deviation of the observed time is 20 seconds
What is the appropriate sample size if the estimate is to be 5 percent of the true average time 95 percent of the time? A) fewer than or equal to seven B) greater than seven but fewer than or equal to eight C) greater than eight but fewer than or equal to nine D) greater than nine
Business