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1. In each of the following cases, decide whether or not a binomial distribution is an appropriate model, and give your reasons. a. A firm uses a computer-based training module to prepare 20 machinist to use new numerically controlled lathes. The module contains a test at the end of the course; X is the number who perform satisfactorily on the test. b. The list of potential product testers for a new product contains 100 person chosen at random from the adult residents of a large city. Each person on the list is asked whether he or she would participate in the study if given the chance; X is the number who say "Yes". 2. Either in a job you currently have or one that you would like to have describe a data set you could collect that would be in the binomial setting.
The following data represents the running time of films produced by 2 motion picture companies. Assume these are independent samples
The sales manager had predicted, before the business started, that year 1's sales would be 410 air conditioners. Using exponential smoothing with a weight of alpha = 0.30, develop forecasts for years 2 through 6.
A screening test is used in the same way in two similar populations, but the proportion of false-positive results among those who test positive in population A is lower than that among those who test positive in population B.
A corporation owns a factory that produces sulfuric acid. Because of changing conditions, the plant's output is quite variable. The company's president has observed that the output is normally distributed with a mean of 8,200 pieces per hour.
A marketing research firm wishes to estimate the proportion of adults who are planning to buy a new car in the next 6 months. A simple random sample of 100 adults led to 22 who were planning to buy a new car in the next 6 months.
Machine which fills quart milk cartons is set up to average 32.2 oz per carton, with standard deviation of 1.2 oz. Determine probability that filled carton will contain less than 32 oz of milk?
The number of customers who have requested a reservation at full fare for this flight in the past always has a normal distribution with mean 40 and standard deviation 10. Determine how many seats should be reserved for customers who pay full fare.
Jane chooses every 20th person in the campus phone book to call for her interview study. Justin identifies important subgroups in the campus population
What are common practices in writing literature reviews to avoid because they are forms of plagiarism? What should be done instead? How would you organize your literature before writing a lit review?
What is the probability there will be between 10 and 14 calls inclusive arriving at the company in the next 15 minutes?
Describe a business-related situation in which you would expect there to be a strong relationship (correlation) between an independent and dependent variable.
What is the basic principle that can be used to simplify a polynomial? What is the relevance of the order of operations in simplifying a polynomial?
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