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The CEO of a mail order business is reviewing the order filling operations at their two warehouses. The goal is to have 100% of orders shipped within 24 hours. In previous years, neither warehouse has achieved the goal, but the East Coast Warehouse has consistently out-performed the West Coast Warehouse.
To compare the current performance of the warehouses, they decide to conduct a hypothesis test at the 5% significance level. They randomly select 350 orders from the West Coast Warehouse (population 1) and 400 orders from the East Coast Warehouse (population 2). They found that 310 of the West Coast Orders were shipped within 24 hours, and the East Coast Warehouse shipped 365 orders within 24 hours. What is the p-value for testing the hypothesis whether there is a difference in the proportion of shipments at the two warehouses?
the probability is 1 in 4 million that a single auto trip in the US will result in a fatality. Over a lifetime, an average driver takes 50,000 trips. What is the probabiltiy of a fatal accident over a lifetime. Explain.
the cost of a college education has increased at a much faster rate than costs in general over the past twenty years.
The mean of a normal probability distribution is 60; the standard deviation is 5.
Part variability is critical in the manufacturing of ball bearings. Large variances in the size of the ball bearings cause bearing failure and rapid wearout.
Find the point estimate of the percentage of adults who are in favor of this death penalty. Find a 95% confidence interval estimate of the percentage of adults who are in fa- vor of this death penalty.
when doing an experiment with many groups what is the problem with doing t test between possible groups without an
Construct a stem-and-leaf display for the data in given problem.- Draw a frequency polygon and an ogive for these data.
Sampling from the population. Olesen, Butterworth, Leach, Kelaher, and Pirkis (2013) selected a sample of 8,315 respondents from a population.
If Chris guessed each and every item in the test, describe the probability distribution for the number of correct guesses.
What would be SSC's estimated cost of equity if it changed its capital structure to 40% debt and 60% equity?
What is Optimal solution? Using Linear Programming or any other methods (Optional) Explain in Detail What does it mean "Optimal Solution"?
Develop a joint relative frequency distribution for the variables "Overall Customer Satisfaction" and "Typical Visits Per Week." Discuss the results.
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