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Find the probability of drawing a straight flush in poker. A straight flush is 5 in a row in a single suit, but not a royal flush.
A cut-off time is set at the slowest 10% of the learning distribution. Anyone slower than this cut-off time is definitely not hired. What proportion of the candidates will be hired automatically?
Although controversial and the subject of some recent lawsuits, some human resource departments administer standard IQ tests to all employees. The Stanford-Benet test scores are well modeled by a Normal model with mean 100 and standard deviation 1..
In each of the following situations, the sampling frame does not match the population, resulting in undercoverage. Give examples of population members that might have been omitted:
Contrast the no-trade and the trade outcome assuming no arbitrage: that is, find equilibrium prices, quantities, and profits. Which do consumers prefer? What kind of price discrimination is the trade equilibrium?
In what areas of your business is it important to draw inference? Describe a time when drawing an inference may have hurt your business.
Sketch and upload the density function for the random variable Y. Be sure to label your axes and provide values on the axes.
A sample of 40 ovservations is selected from one population. The sample mean is 102 and the sample standard deviation is 5. A sample of 50 observers is selected from a second population.
a new phone answering system for a company is capable of handeling seven calls every 10 minutes. prior to installing
a two-tailed test of hypothesis was conducted and 60 values were above the median. computed z 1.61. at the 0.05 level
according to the centers for disease control and prevention about 11 of all americans 12 years of age and older use
In a random sample of 53 concrete specimens, the average porosity (in percent) was 21.6 and the standard deviation was 3.2. a) Find a 90% confidence interval for the mean porosity of specimens of this type of concrete.
Camera, 28% had a music player, and 22% had both. What is the probability that a cell phone sold last month had a camera or a music plaer?
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