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A study of a company's practice regarding the payment of invoices revealed that an invoice was paid an average of 20 days after it was received. The standard deviation equaled five days. Assuming that the distribution is normal, what percent of the invoices were paid within 15 days of receipt?
A) 15.87%
B) 37.91%
C) 34.13%
D) 86.74%
Among 620 adults selected randomly from among the residents of one town, 18.9% said that they favor stronger gun-control laws.
Recognize and examine the research question which applies to your organization. Create a 350- to 700-word milestone. Select the organization with which your team is familiar.
What is the probability the average of the sample is more than $38000 and What is the standard deviation of the sample mean
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The mean weight of newborn babies in a Long Island Community is 7.5 lbs with a standard deviation of 1.4 lbs. What is the probability that a random sample of 49 babies has a sample mean weight of at least 7.2lbs?
Use an appropriate test to determine if the reason for component failures is independent of their designs. Show your manual calculations here.
Can you explain to me how the null and alternative hypothesis for one-sample testing differs from two-sample testing; and explain how these two hypothesis' are the same. Please provide a numerical example:
What is the probability that at least 2 out of 5 randomly selected people in the study will pay more than the amount found in part (a)?
If Mr. Cue were to order 1000 kilograms (instead of EOQ) of ivory at a time, what would be the length of the cycle between orders?
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