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In a piston assembly, the specifications for the piston diameter are 12 ±0.5 cm, and those for the cylinder diameter are 12.10 ±0.4 cm. Assume that the natural tolerance limits coincide with the specifications. A clearance fit is required for the assembly.
What proportion of the assemblies will be nonconforming, assuming a normal distribution of the piston and cylinder diameters? Clearances more than 0.8 cm are undesirable. What proportion of the assemblies will not meet this stipulation?
oil field pipes are internally coated in order to prevent corrosion. researchers investigated the influence that
a fast-food restaurant sells hamburgers and chicken sandwiches. on a typical weekday the demand for hamburgers is
Explain how significance is determined in simple terms as well and define a statistical interaction and how it affects your results. Give an example. List the variables that are interacting and why.
the previous exercise is very important to your understanding of tests of significance. if you dont use the applet you
The IQ of a randomly chosen individual is modeled using a Gaussian random variable.- what percentage of the population have an IQ of at least 140 and thereby are considered "genius?"
Assert with probability of at least 0.95 that the error of her estimate will not exceed 0.07. How large a sample, n, will she require if she has no idea what the true proportion is.
What do we call disconnecting from a traumatic emotion without denying, repressing or reshaping it in any way?
Gender differences in dream content are well documented (Winget & kramer, 1979). Suppose a researcher studies aggression content in the dreams of men and women.
If X1 and X2 are independent random variables having exponential densities with the parameters a and b the probability density of Y = X1+ X2 when a not eqal to b
How many ways might there be in picking a small group of 6 people from a large group of 20 people?
For a sample of 138 independent observations from a normal distribution of unknown μ and variance σ 2 = 2.6, the sample mean is 52.3. What is the width of the 95% confidence interval for μ?
suppose we wanted to know if people get more nervous before flying in an airplane or taking a ship to their
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