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Create a simple question about demand for an imaginary product, such as a dog-walking service. While you should not focus on how to write a good survey question in this discussion, you learn that writing and testing the question is a science in itself. For now, write the question in such a way that you may determine which of four price ranges customers would be willing to pay. After asking a few friends and family to answer the question, create a table in Microsoft® Excel showing the possible answers and how many people selected each answer. Graph the information using a histogram and a scatter plot in Excel as well. How does seeing the information in a graphical format provide more information?
The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the possibility that- ..
Utilize this information to construct a probability table, and then calculate each of the given probabilities:P (female and domestic car).
A psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Determine the regression line equ..
Finding the probability of each event in a group of events of different possibility
Difference between the discrete and the continuous random variable.
The DPMO for process is 860. Find the approximate Six Sigma level of the process?
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
Assuming the sample size of 40 can be considered as large, compute the confidence interval for a confidence level of 90%.
Determine x-bar and s for this data set. You may suppose the values for bulb life are normally distributed. Use traditional method to make your decision.
Compute the standard error of estimate, and interpret its meaning.
Given the same significance level, a ________ value of t will be required to reject the null hypothesis compared to the value of z required for rejection.
An experiment consists of making 80 telephone calls in order to sell a particular insurance policy.
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