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Manufacturing and Product Development Pig iron is a mixture of iron ore, charcoal from coal, and limestone, melted together under very high pressure. This type of iron is usually refined and used to produce wrought iron, cast iron, or steel. A random sample of the production and shipment of pig iron (in 100 metric tonnes) per month in Canada was recorded.
Use the four methods presented in this section to determine whether there is any evidence to suggest the data are from a non-normal population.
Compute the p-value associated with this test. Place your answer, rounded to 4 decimal places, in the blank. For example, 0.3456 would be a legitimate entry.
The same students increased their scores on a retest to: 85,79,75,95, and 84. At the 0.05 significance level, is the intervention plan helpful in increasing grades?
A CFR system with λ = 0.0004 has been operating for 1000 hr. What is the probability that it will fail in the next 100 hr? The next 1000 hr?
suppose the probability distribution for x 5 number of jobs held during the past year for students at a school is as
Draw a scatter diagram of the following bivariate data.
Scenario: A local bank is conducting a cost review of one of its drive-in window locations. Specially it wants to know the cost of manning its drive-in window operation using various numbers of customer service personnel to man its Multichannel, s..
in a past election the voter turnout was 51. in a survey 843 subjects were asked if they voted in the election. find
a deck of 52 cards is shuffled and a bridge hand of 13 cards is dealt out. let x and y denote respectively the number
A scatter plot and regression line can be used for all of the following EXCEPT
Determine the least-squares regression equation for y 5 next year's price/earnings ratio estimate as a function of x1 5 annual revenue growth and x2 5 annual earnings per share growth. Interpret each of the partial regression coefficients.
the u.s. bureau of labor statistics produces consumer price indexes for several different categories. shown here are
A local fast-food restaurant has determined that 10% of drive-thru orders are filled incorrectly. Suppose 5 orders are randomly selected. What is the probability that more than one of the orders is filled incorrectly?
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