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A machine is set to pump cleanser into a process at the rate of 10 gallons per minute. Upon inspection, it is learned that the machine actually pumps cleanser at a rate described by the uniform distribution over the interval 9.5 to 12.5 gallons per minute. Find the probability that between 10.0 gallons and 11.0 gallons are pumped during a randomly selected minute.
A) 0.33B) 0.67C) 1D) 0
In the regards to a stem-and-leaf plot that best represents the given data, what would the stem be? Determine which stem would have the most leaves and explain what this means in terms of the GPA's.
Is the mean list price of a house lower if there are 3 bedrooms compared to 4 bedrooms? To answer this question we will construct a confidence interval and hypothesis test.
The closing price of a company's stock tomorrow can be lower, higher or the same as today's closed. Without any prior information that may affect the price of the stock tomorrow, the probability that it will close higher than today's close is 1/3
As an aid for improving students' study habit, nine students were randomly selected to attend a seminar on the importance of education in life. The table shows the number of hours each student studied per week before and after the seminar.
In a perfectly symmmetrical distribution: a) the range equals the interquartile range b) the interquartile range equals the mean c) the median equals the mean d) the variance equals the standard deviation
If the population is normally distributed then the sample mean is also normally distributed even for small sample size.
Given the following data, use exponential smoothing with a=0.2 and a=0.5 to generate forecasts for periods 2 through 6. Use MAD and MSE to decide which of the two models produced a better forecast.
What is the probability that the graduate selected will be a male who is not a member of a sports team? What is the probability that the graduate will be either a female or a member of a sports team?
There is pretty good chance average number of days absent would be 12 or more. That is what occurred to us - chance variation." Is this good defense? Justify the answer.
In certain normal distribution of scores, mean is 50 and standard deviation is 4. Determine z-score corresponding to a score of 55.
What is the approximate probability that the mean diameter x of the sample of 25 bearings will lie within 0.0001 inch of the population mean diameter of the bearings?
Findout the percentage of trainees earns less than $900 a month utilizing normal distribution.What percentage of trainees earns less than $900 a month?
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