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A coffee shop estimates that the mean number of cups of coffee sold per day to surrounding businesses is 2.0 per employee with a standard deviation of .6 cups of coffee. a new business with 125 employees is moving into the area. what is the probability that the new employees will consume more than 240 cups of coffee per day.
If there are repeated independent trials and there are only two outcomes, what distribution should be used?
History suggests that the average number of hurricanes formed during a year is 6.0 hurricanes. Find the probability of at most three hurricanes being formed during a randomly selected year.
Projection are form the U.S. National Center for Education Statistics>. Create a multiple bar graph of data, and then explain any trends.
On a test, a sample of 5 students has a mean score of 78. The scores of four students of them are: 87, 81, 76, 53. Find the test score of the fifth student and standard deviation of this sample.
Determine margin of error for confidence interval in (a)?
Identify three discrete variables that appear in your current or future career. How do those variables affect your workplace, your product, or your personnel? How would changes in those variables affect these things?
Based on anthropological reports in which the status of women is scored on a 10-point scale, the mean and standard deviation across many cultures are known. A new culture is found in which there is an unusual family arrangement.
The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
A researcher measures a response variable Y and explanatory variable X on each of several objects. A scatterplot of the measurements is as follows.
We are interested in determining whether or not the opinions of the individuals (as to Yes, No, and No Opinion) are uniformly distributed.
customer's time is worth $1 per hour and should be accounted for in the model. If customers arrive at a Poisson rate of 10 per hour, then what is the average cost per hour if Mary is hired? if Alice is hired?
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