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Using Excel, show formula to solve the equation.
An important part of the customer service responsibilities of a cable company is the speed with which trouble in service can be repaired. Historically, the data show that the likelihood is 0.65 that troubles in a residential service can be repaired on the same day. For the first five troubles reported on a given day, what is the probability that all five will be repaired on the same day?
You're operating a business in very competitive market. You're not yet the dominant player, but you have invested heavily in marketing and product development and it has paid off with a steady growth rate of 10%.
A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the contents is 81 milliliters. A new machine is tested on a sample of 24 containers and the standard deviation for this sample group is found to be 26 mil..
If you reject the null hypothesis (and conclude that the independent variable has an effect), what's the likelihood that you have made a Type I error?
Find the mean, median, and mode for the following sample of scores: 2,3,3,1,2,5,2,3,4,2
Use the four methods presented in this section to determine whether there is any evidence to suggest the data are from a non-normal population.
Find an example of a randomized experiment in the news. Answer the following questions about it. Be sure to include the news article with your response.
Describe how a block experiment could be done in this situation. Be specific about how blocks would be formed and how weight-training methods would be assigned.
Refer to the cash flows listed for the Kelly Company investment projects in the table below. The discount rate is 6 percent. Calculate the present value of these cash flows. What is the present value at:
Create a stem-and-leaf display of these data.- Write a brief description of the distribution. Be sure to discuss the overall shape as well as any unusual features.
Use the given data to estimate the difference in the proportion of children who get sick with the flu after being vaccinated with an injection.
For a given level of significance, if the sample size is increased: the power of the test will increase we will have more responses to log and calculate it will skew the mean to the right it has no effect on the direct results.
The estimate of β2 in the model was 19, with a standard error of 3. Use this information to form a 95% confidence interval for β2. Interpret the interval.
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