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The shape of the distribution of the time required to get in oil change at a 15 minute oil change facility is unknown. However records indicate that the mean time is 16.2 minutes and the standard deviation is 3.3 minutes.
What is the probability that a random sample of n= 40 oil changes results in a sample mean time less than 15 minutes? (Round 4 decimal places)
Suppose the manager agrees to pay each employee a $50 bonus if they meet a certain goal. On a typical Saturday the oil change facility will perform 40 oil changes between 10 AM and 12 PM. Treating this as a random sample there would be a 10% chance of the mean oil change time being at or below what value.
There is a 10% chance of being at or below or mean or oil change time of ______ minutes?
Use an appropriate hypothesis test to determine whether the number of student enrolments at very remote schools in 2014 was a useful predictor of the number of teaching staff
Find a 99% confidence interval for the difference in the two proportions,Pw - Pe , where Pw is the proportion of errors using written prescriptions and Pe is the proportion of errors using e-prescriptions.
he probability is 1 in 4000000 that a single auto trip in the united states will result in a fatality. over a lifetime
Recent recommendations from a medical association stated that 60 minutes of physical activity per day is healthy. A survey of cardiovascular risk factors
1.reading highway signs is not always easy especially if your vision is imperfect. vision in general tends to
a) What is the mass of boiling water we need to melt all ice? b) What is the nal temperature if we mix the ice from the freezer with 5kg of boiling water?
A medical inspector wants to estimate the overall average monthly occupancy rates of the cancer wards in 80 different hospitals that are evenly located in the northwestern, southeastern, central, and southern suburbs on New York City.
How did approaches to understanding and interpreting the world change with the emergence of new technologies like the printing press? How did new approaches to perspective in art and cartography represent new ways of viewing and manipulating the ..
assume that google is hiring employees on the different business days of the week monday through friday with equal
Need to make a final project about Project Portfolio Management
Suppose 80% of kids who visit a doctor have a fever, and 20% of kids with a fever have a sore throats. What's the probability that a kid who goes to the doctor has a fever and a sore throat?
An occupational health study was carried out to evaluate the health status of workers. The response is forced expiratory volume (FEV), a measure of respiratory function.
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