A population of size 1,000 has a proportion of .5 . Therefore, the proportion and the standard deviation of the sample proportion for samples of size 100 are _____
a. 500 and .047
b. 500 and .050
c. .5 and .047
d. .5 and .050
c
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The major benefit of the hierarchy of effects model is that it is one method to identify the typical steps consumers and businesses take when making purchases
Indicate whether the statement is true or false
All of the following are true concerning Down syndrome EXCEPT
A. in 23% of cases, the sperm contributes the extra chromosome. B. chances of a woman having a child with Down syndrome decrease as she gets older. C. it is caused by autosomal trisomy 21. D. it is the most common trisomy in humans.
In waiting line systems, there is a(n) ______ relationship between customer waiting time costs and capacity-related costs.
a. direct b. inverse c. exponential d. null
Which of the following is a rule of thumb used to make the dashboard more attractive and more effective?
A) Create an RSS file for the dashboard. B) Use a large variety of item types. C) Use bright colors and bold fonts only for all data to distinguish the dashboard from the other windows. D) Choose appropriate performance measures for display.