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1. Explain how the basic strategy of control is employed in a room air-conditioning system. What is the controlled variable? What is the manipulated variable? Is the system self-regulating?
2. Is driving an automobile best described as a servomechanism or a process-control system? Why?
The probability of failure of component A is 0.02 and that of B is 0.1 in some fixed period of time.- If the components work independently, find the probability that the device will work satisfactorily during the period.
A certain test is designed to measure the satisfaction of an individual with his/her relationship. Suppose that the scores on this test are approximately normally distributed with a mean of 50 and a standard deviation of 10.
Is the hypothesized difference (0.00) within the interval? Given the presence or absence of the 0.00 value within the interval, is this consistent with the findings of the hypothesis test?
Please construct an appropriate chart/graph that displays the relevant information for these two variables (comparative mean score of creative pre-post test).
If the longleaf pine trees are randomly distributed, we expect to find equal number of trees in each quadrant. Find the expected count for each quadrant. Perform a goodness of fit test to determine if the longleaf pine trees are randomly distribut..
Qualitative research often generates large amounts of data that must be gathered and analyzed. The use of statistical software such as the Statistical Package for the Social Sciences (SPSS) can significantly simplify and enhance the analysis of qu..
Assume that this average is based on a random sample of 15 test runs of the new lamps and that the sample standard deviation was 18 tons. Give a 90% confidence interval for average annual savings.
Calculate the centerline and control limits for the X‾- and s-charts.- Estimate the process mean and standard deviation, assuming the process to be in control.
Find the z score for a raw score of 550 given the following information: 554 sample mean, 30 sample standard deviation.
This exercise gives you the opportunity to develop a measurement strategy of your own. 1. Identify an area of the social sciences you know something about (aging, marriage and the family, crime and criminal justice, social problems, social class, a..
You are asked to match three songs with the performers who made those songs famous. if you guess, the probability distribution for the number of correct matches is:
An employee may retire at any age from 63 to 65, with a reduction in pension income of 5% per year. Find a formula for the actuarial present value of the pension benefits.
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