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The owner of the doughnut shop has been paying attention to the number of customers who come through the shop. She has worked out than on average, 112 customers walk in every 8 hour day.
She normally has another member of staff to help serve customers on each day, but on one particular day the staff member called in sick with little warning and no time to call for a replacement. Halfway through the day, the owner needs a 30 minute lunch break, and is forced to close the shop for this period of time. Assuming that customers arrive according to a Poisson process, what is the probability that more than 6 customers arrive during this lunch break?
State the decision rule? (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.)
a potato chip manufacturer samples 13 bags of potato chips off the assembly line and weighs their contents. if the
four different kinds of radar systems designed to detect or monitor the airspace around a major airport for high flying
At the school there are eight tenured faculty members in accounting. What is the probability that the committee will contain: None of them?
A national survey is conducted to assess the association between hypertension and stroke in persons over 55 years of age. Compute the incidence of stroke in persons over 55 years of age
Adult men have weights that are normally distributed with a mean of 172 lb and a standard deviation of 29 lb. Find the probability that the mean weight of the men in the sample is between 170 and 175 lb.
In a sample batch of 46 mechanical pencils it is assumed that 18 are defective. If 5 mechanical pencils are randomly selected, what is the probability that none of them are defective?
1.consider a small experiment to investigate if biofeedback can reduce blood pressure. six subjects were randomized to
Can you please explain a general strategy for factoring in a very organized way. Give an example if possible.
A central university has a student population of 60,000. The university is interested in determining what proportion of them is in favour of a new grading system.
A new machine has just been installed to cut and rough-shape large slugs. The slugs are then transferred to a precision grinder. One of the critical measurements is the outside diameter.
According to the Sleep Foundation, the average night's sleep is 6.8 hours. Assume the standard deviation is 0.6 hours and the probability distribution is normal. a. What is the probability that a randomly selected person sleeps more than 8 hours?
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