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Business Decision Modeling Assignment - Practice Problem: Learning Curves
A contractor developed an initial set of 5 new systems for an oil drilling company. Labor hours for building the systems are shown in the following table.
Unit #
Hours
1
57,490
2
53,004
3
50,670
4
48,800
Based on positive feedback the customer is considering ordering either 20 or 40 production units. Fully loaded labor costs for the company are approximately $50 per hour.
Assuming a standard learning curve model do the following:
Suppose a population proportion is .40, and 80% of the time when you draw a random sample from this population you get a sample proportion of .35 or more.
Suppose foreigners spend $7 billion on American exports in a given year and Americans spend $5 billion on imports from abroad in the same year.
The bacteria Escherichia coli are commonly found in the human bladder. Suppose that 3000 of the bacteria are present at time t-0. Then t minutes later, the number of bacteria present can be approximated by:
The Better Business Bureau (BBB) wants to determine whether a certain business is engaging in fair hiring practices.
an environmental engineer places monitors in a large number of streams to measure the amount of pollutants in the
The graph in Figure shows the number of complaints for six different airlines as reported to the US Department of Transportation in February 2013.
Explain how a matched pairs experiment should be conducted to compare texting and typing speeds. Be sure to explain the role of randomization, and why it is important in this experiment and how should randomization be used in this experiment
suppose that two dierent tests a and b are to be given to a student chosen at random from a certain population. suppose
Department members are expected to vote independently and with no prior consultation. What are the candidate's chances of getting the position?
Specify the competing hypotheses in order to determine whether some differences exist between the population means.
suppose on your twenty-fifth birthday you opened a retirement account with the howard fund - a fund paying investors 8
At the .10 significance level you will test to determine if there has been an increase in selling time. Is this a 1 or 2 tail test?
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