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Trucks in a delivery fleet travel a mean of 120 miles per day with a stadnard deviation of 11 miles per day. The mileage per day is distributed normally. Find the probablitly that a truck drives at least 133 miles in a day. Round your answer to 4 decimal places.
About one-third of the students entering a certain university drop out during or at the end of their first year." Does this statement illustrate percentage, proportion or probability?
400 customers of the company and finds that 30 of them are actually not happy about the service. Set up the null and alternative hypotheses to test for the company's claim.
The design tolerance thickness for an automotive part is 55 mm to 65 mm. If the process mean thickness is 61 with a standard deviation of 2.3 mm, then what percentage of the sheets will be acceptable? (i.e. What percentage will fall within the des..
A certain police officer stops cars for speeding. The number of red sports cars she stops in one hour is a Poisson process with rate 4, while the number of other cars she stops is a Poisson process with rate 1.
Determine the setting for the mean so that no more than 1% of the cans of paint will be unacceptable.
What is the probability that a student who has failed the test came from the South District?
She collected the employee performance ratings recorded before and after workshop attendance and stored the paired ratings for all 35 in Perform.
A researcher had the idea that background music might enhance performance on a math test and that the effect of music might depend on whether an individual is a music lover or not.
Determine the regression line. What do the coefficients of the regression line tell you about the relationship between mortgage rates and housing starts?
Populate the selected graph/frequency chart with fictitious data. Did your selected graph/frequency chart effectively portray the data?
The population standard deviation is known to be 8 minutes. create a hypothesis test to determine if the mean commute time does in fact exceed 40 minutes.
Make a pie chart or other indicator that expresses the market position of your fictitious IS business in terms of its top five products or services.
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