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A cable manufacturer has historically averaged 2.6 flaws per 1000 meters length of wire production. a. Find the probability that a 1000 meter length of wire has one or fewer flaws b. Find the probability that a 1000 meter length of wire has more than one flaw c. Find the mean number of flaws per 1000 meter length of wire, the variance and the standard deviation d. generate the graph of the probability mass function for the number of flaws in 1000 meter of wire e. Suppose you examine a 1000 meter length of wire. What is the probability that there is exactly 1 defect in the fisrt 500 meters and exactly 2 defects in the second 500 meters of wire? What is the probability that there are exactly 3 defects anywhere in the 1000 meters of wire? Do your two answers "make sense"? Please exolain.
Which of the following would be the hypothesis for testing the claim that the proportion of students at a large university who smoke is significantly different from 0.15?
A study of 20 worldwide financial institutions showed the correlation between their assets and pretax profit to be .86. At the .05 significance level
You draw two cards from a standard deck of 52 cards, but before you draw the second card, you put the first one back and reshuffle the deck.
Determine whether the survey figure for urban people is also true for rural people on the basis of the sample data.
Entire batch will be rejected if at least one of those tested is defective. Determine the probability that entire batch will be rejected?
Find the percentage of area under a normal curve between the mean and the given number of standard deviations from the mean.
A company is filling bags of rock salt to a level of 50 pounds. It believes that all bags are filled correctly, but would like to use a hypothesis test with an alpha of 0.05 to check this belief.
Galvanizing lines that are assumed to operate independently. What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation.
Correlation based on Scatter Plot - Draw the scatter plot for the variables.
What is the probability that the sample proportion of grocery stores selling Haagen-Dazs ice-cream, will be within 0.01 of the population proportion?
Medical tests were conducted to learn about drug-resistant tuberculosis. Of 142 cases tested in NJ, 9 were found to be drug-resistant. Of 268 cases tested in Tx, 5 were found to be drug-resistant.
Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major.
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