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When a machine is properly calibrated, .5% od is output is defective, but when it is out of adjustment,6% of the output is defective. The technician in charge of calibration can successfully calibrate the machine in 90% of his attempts. The technician has just made an attempt to calibrate the machine.
a) What is the probability that the machine is in adjustment?
b) The first unit produced after the calibration effort to be found to be defective. What is the probability that machine is in adjustment?
Carry out the global test of hypothesis to find out whether any of the regression coefficients are not equal to 0. Use.05 level of significance.
The lifetime of a 2-volt non-rechargeable battery in constant use has a Normal distribution with a mean of 516 hours and a standard deviation of 20 hours. The proportion of batteries with lifetimes exceeding 520 hours is approximately.
The width of a confidence interval will be:
Labor negotiations estimate that 30 percent of all major contract negotiations result in a strike. During the next year, 12 major contracts must be negotiated. Determine the following probabilities.
In ANOVA, which of the following is not affected by whether or not the population means are equal?
What is the probability of the person is 20 to 24 years old.What is the probability of the person is 20 to 34 years old.
At.05 significance level, is there a difference in mean number of calls per day between 2 employees? Compute the p -value?
When the names of all the students at Omega University were dropped to a fishbowl, they would include:
Find the probability using the Poisson distribution.
What is the probability that they all hit the target?
Show some work for each part. A diagram can be helpful. A survey of adults found the following: 65 percent of the adults drink coffee. 35 percent drink tea. 80 percent drink coffee or tea (or both). If we choose a surveyed adult at random, find t..
Develop percent frequency distribution and construct bar chart and pie chart.
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