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1. Consider the two-component assembly shown in given Figure. Suppose that the mean lengths are given as μ1=14 cm and μ2=8 cm. Assuming that the specifications for Y are 6± 0.2 cm, what are the tolerances for X1 and X2? Assume that the variance of X1 is three times as large as that of X2.
2. Four metal plates, each of thickness of 3 cm, are welded together to form a subassembly. The specifications for the thickness of each plate are 3± 0.2 cm. Assuming the weld thickness to be negligible, determine the tolerances for the assembly thickness.
a club with 31 members is voting on a proposal. a group of 4 has decided to vote in favor of the proposal while each of
She constructed a 95% confidence interval for the proportion of cultures that are alive after 48 hours and got (0.828, 0.872). Which of the following is the most appropriate way to report or interpret this confidence interval?
Construct a probability distribution table. (b) if p=0.4, find the expected net profit. (c) what is the smallest value of P for which the owner will take the risk to undertake this project?
a random sample of size 36 is selected from a population whose mean is 30 and standard deviation is 6. calculate the
George Washington became the first President of the United States of America when he took office on April 30, 1789. Some of the important jobs that the President is expected to perform are?
What is the value of k? (Hint: g p 1 y2 5 1.) What is the probability that at most three forms are required? What is the probability that between two and four forms (inclusive) are required?
question a set of n 20 pairs of scores x and y values has ssx 25 ssy 16 and sp 12.5. if the mean for the x values
The width of an interval is half of the difference between its upper and lower bounds. The width is a measure of the uncertainty of the number specified by the interval.
Media Matrix and Jupiter Communications gathered data on the time adults and the time teens spend online during a month (USA Today, September 14, 2000).
Determine the Efficiency of this market research. What would be your suggestions? How much will this company be eager to pay for this market research?
For each of the following three scenarios, state which hypothesis test you would use from among the four introduced so far: the z test, the single-sample t test, the paired-samples t test, and the independent-samples t test.
Construct a frequency polygon using the distribution of grouped scores constructed in given Problem. Is the curve symmetrical or positively or negatively skewed?
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