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Question: A metal is deformed in a tension test into its plas-tic region. The starting specimen had a gage length 2.0 in and an area = 0.50 in2. At one point in the tensile test, the gage length = 2.5 in and the corresponding engineering stress = 24,000 lb/in2; at another point in the test prior to necking, the gage length = 3.2 in and the corresponding engineering stress = 28,000 lb/in2. Determine the strength coefficient and the strain-hardening exponent for this metal.
batteries life spans are normally distributed. the mean is 2300. the standard deviation is 20 hours.what percent of
What's the probability that the total weight in that second box exceeds 60.5 pounds? Define your variables clearly and state any assumptions.
Do these data provide sufficient evidence at the 5% level to reject the hypothesis that these population proportions are equal?
Whether realistic or not, assuming that the probabilities are independent, what is the probability that Harold and Maude will both arrive on time?
Example 11 compared mean political beliefs (on a 1 to 7 point scale) to the moderate value of 4.0, using GSS data.
What is the probability of a child ending up with a bus stop as gender-unbalanced as my son's in our school district - perform the hypothesis test
Is there evidence of a significant difference in the proportion who get their news primarily from newspapers between those 36 to 50 years old and those above 50 years old? (use α = 0.05)
Winter. Comment on the following quotation: "What I think is our best determination is it will be a colder than normal winter," said Pamela Naber Knox.
Write a two-to three-page short paper (10 percent of your total grade) comparing and contrasting the presentation of a historical event by two different historians. Historians do not only provide accounts of events (themes, eras, people);
Find the equation of the regression line to predict course grades from placement test scores.
How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 100 compare to the bell-shaped curve for sampling distribution of sample means for samples of size n = 60.
For this exercise, you will open the SPSS sample file called workprog.sav and select two discrete variables and one continuous variable to build a histogram.
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