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Machine A produces 3% defectives, machine B produces 5% defectives, and machine C produces 10% defectives. Of the total output from these machines, 60% of the items are from machine A, 30% from B, and 10% from C. One item is selected at random from a day's production.
a. What is the prior probability that the item came from machine C?
b. If inspection finds the item to be defective, what is the revised probability that the item came from machine C?
the time it takes to process phone orders in a small gift shop is normally distributed with a mean of 6 minutes and a
A medical researcher suspects that the pulse rate of smokers is higher than the pulse of non smokers. Use the sample statistics below to test the researchers suspicion.
We can show that {Y(t),t ≥ 0} is also a birth and death process. (a) Give the birth and death rates of the process {Y(t), t ≥ 0}.
for each individual the probability that they will pass the proficiency exam independant of their classmates is .99.
Given f(x,y)=x3+3xy2-3x2-3y2+4. Find all critical points of f and find extreme values (maxima and minima) and saddle points of f.
consider a random sample of size n from a poisson distribution xi poim.a find the crlb for the variances of
q1. suppose that we will randomly select a sample of 64 measurements from a population having a mean equal to 20 and a
Access www.ftc.gov/sentinel to learn how law enforcement agencies around the world work together to fi ght consumer fraud. Each team should obtain current statistics on one of the top fi ve consumer complaint categories and prepare a report. Are a..
a student prepares for an exam by studying a list of 10 problems. she can solve 7 of them. for the exam the instructor
Assess the model fit for the multiple linear regression model using appropriate statistics and graphics.
A pn junction operating in the forward-bias region with a current I of 1 mA is found to have a diffusion capacitance of 5 pF. What diffusion capacitance do you expect this junction to have at I = 0.1 mA? What is the mean transit time for this junc..
With reference to Example 5, test the null hypothesis σ1 - σ2 = 0 against the alternative hypothesis σ1 - σ2 > 0 at the 0.05 level of significance.
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