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A soft drink machine is regulated so that the amount of drink dispensed is approximately normally distributed with the value of the standard deviation equal to 0.1 ounce. How many drinks do we have to sample if we wish the length of the 95% confidence interval of the mean to be 0.1 ounce?
Suppose you conduct survey asking people if they support something or if they like some product or if they watch some TV-show.
Given the following data, calculate the EMV for each investment alternative. Which is best based on the EMVs you calculated?
According to the local union president, the mean gross income of plumbers in the Salt Lake City area follows the normal probability distribution with a mean $45,000 and a standard deviation of $3,000.
Critically discuss why you would or would not expect each of the following variables to be normally distributed.
The first step in this assignment is to provide SPSS with the Value Labels for the values in LOCALE97.
Given that P (A) = 0.7, P (B) = 0.5, and P (A B) = 0.8. Find the following probabilities:
Nut problem: Manager claims 336g and a population standard deviation of 11g. We sample 64 bags and find
The 90% confidence interval to estimate the true average difference in nationwide sales quantity before the ad campaign and after is (0.39, 16.64). Which of the following is the appropriate conclusion? The differences were calculated as (after ad ..
Suppose there is no cyclical component. Quarterly billing for water usage is shown below describe summer billing for year 5.
Explain whether the authors used a population or a sample. Explain how this could have affected the results. If a sample was used, was it representative of the entire population? Why or why not?
Find out the regression variable that correlates best. Among which regression variable, carbon dioxide or methane correlates best with the earth's surface temperature.
The availability of venture capital provided by big boost in funds available to companies recent years. According to Venture Economics, 2,000 venture capital disbursements were made in 1999.
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