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Sugar packaged by a certain machine has a mean weight of 5lb and a standard deviation of 0.02 lb. For what values of c can the manufacturer of the machinery claim that the sugar packaged by this machine has a weight between 5 - c and 5 + c lb with probability at least 96%?
A new speed limit will be initiated such that approximately 10% of vehicles will be over the speed limit. What is the new speed limit based on this criterion? In what way do you think the actual distribution of speeds differs from a normal distribu..
what is the sample space of all possible outcomes? Are the outcomes equally likely?
Determine the confidence interval for population mean and the Superintendent wants to determine the average amount of hours per week the student population studies at home.
Find a 95% confidence interval for the population mean selling price of all homes in this neighborhood.
Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.
Develop a probability for the number of students in the sample who watch soap operas.
Conduct a one-tailed hypothesis test given the information below. A certain brand of Green Energy light bulbs was advertised as having an average illumination life-span of 2,500 hours. A random sample of 50 bulbs burned out with a mean life-span o..
According to Chebyshev's theorem, proportion of values from data set that is further than 2 standard deviations from the mean is at most?
Calculate the sample mean and sample standard deviation.
What is the appropriate inferential statistical test for the case scenario? Why?
Insurance policy from company A costs $300 a year but guarantees to replace any losses due to theft. Create the decision tree.
Utilizing the chart parameters developed above to define the control charts for future candy bar production, Compute the appropriate plotting points from the data.
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