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In a recent study 90 percent of the homes in the United States were found to have TVs. In a sample of nine homes, what is the probability that:
a. All nine have TVs?b. Less than five have TVs?c. More than five have TVs?d. At least seven homes have TVs?
Cars arrive at a toll booth at a mean rate of five cars every 10 minutes according to a Poisson process. Find the probability that the toll collector will have to wait longer than 26.30 minutes before collecting the eighth toll.
Find the asymptotic distribution of the MLE of the indicated parameter and find formulas for approximate standard errors of the MLE.
Plot the sales data as a time series and do you think this series is stationary or nonstationary
1.researchers compared two groups of competitive rowers a group of skilled rowers and a group of novices. the
Which trend model is best, and why? If none is satisfactory, explain. (e) Make a forecast for 2003, using a trend model of your choice or a judgment forecast.
Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and a standard deviation of 1 degrees C.
What is meant by a probability distribution? Discuss how you could use one of the text probability distribution at your workplace to help solve a business problem.
For the following data set, indicate whether the shape of the distribution is normal, positively skewed, or negatively skewed. Provide evidence for your answer by calculating the mean, mode, and median.
Use Excel and determine the number of each type of person that will be needed to complete the job within the allotted time and at minimum cost.
Auntie Pam's Home Made Wild Grape Jelly has been a great hit through online sales. She has recently expanded her small factory and acquired a new filler machine to accommodate the increased demand, especially for the 12 ounce jar, which is the mos..
For a sample of n 4 weeks in which the daily temperature was extremely hot, the weekly average of hit-by-pitch players was M 15.5. Are players more likely to get hit by pitches during hot weeks?
Is there a difference in the number of points students earned on their educational statistics pretests and posttests?
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