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Question: In Problem, fracture occurs at a gage length of 2.92 in
(a) Determine the percent elongation.
(b) If the specimen necked to an area = 0.25 in2, determine the percent reduction in area.
Problem: A test specimen in a tensile test has a gage length of 2.0 in and an area =0,5 in2. During the test the 147.01 mm, (5)27,578 N at 153.00 With; and (026;462 N at 160.10.mm. The maximum load is 28,913 N and the final data point occurred immediately prior to failure specimen yields under a load of 32,000 lb. The cor-responding gage length = 2.0083 in. This is the 0.2% yield point. The maximum load = 60,000 lb is reached at a gage length = 2.60 in. Determine
(a) yield strength,
(b) modulus of elasticity, and
(c) tensile strength.
You are running a chi-squared test. If you have 5 groups with 3 characteristics each, what would your critical value be with an alpha of .25? a . Between 0 and 3.0
Under similar driving conditions, they were tested again, using a special additive. The data are shown here. At a = 0.05, did the additive improve gas mileage? Use the Wilcoxon signed-rank test.
Determine the mean µ of X; and then find the first, second, and third moments of the distribution about the point µ.
the value of 13.0 for sample mean results in null hypothesis not being rejected. That corresponds to confidence interval result of?
a 90 confidence interval for a proportion is 0.265 0.385. what is the probability that the population proportion is
Good golfers. In 2007, Tiger Woods won $10,867,052 on the Professional Golfers Association tour. The leading money winner in 1940 was Ben Hogan, at $10,655.
Within each of your current careers/ jobs, there are sets of data that can be analyzed. For example, a teacher can use a set of test scores, a dietician can analyze a set of patient weights and correlate them to incidences of diabetes, and a sales..
Among those who smoked, what percentage has ever been divorced? Is this value a row percentage or a column percentage?
Using the probability distribution table, what is the value of P(X = 2 or X = 0)?
(a) What is the 90% confidence interval estimate for the true mean monthly wages paid to farm workers? (b) What is the 99% confidence interval estimate for the true mean monthly wages paid to farm workers? (c) Compare and comment on the results of (a..
A car dealership has 8 red, 13 silver and 5 black cars on the lot. Ten cars are chosen randomly to be displayed in front of the dealership.
Crete a 90% confidence interval for mean Secchi dish measurement.
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