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A trucking company wants to estimate the weight load capacity of a particular brand of their flatbed trucks. In measuring 13 of their trucks the average load capacity was 2646 pounds, with a sample standard deviation of 845 pounds. A t-interval was computed to be:
( 2017.7 pounds, 3274.3 pounds)
What confidence level does this interval represent?
80%
90%
95%
98%
99%
Four students riding to school together offer a the excuse of a flat tire on their car for missing a test. On the makeup test, the professor asks the students to each identify the tire that went flat.
The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. What is the probability that a pregnancy lasts at least 300 days?
He asks you to develop a proposal for the study and submit it to him. Develop the management-research question hierarchy that will help you to develop a specific proposal.
The information is reported below. Is it reasonable to conclude the percent is less now than five years ago?
A university found that 20 percent of its students withdraw without completing the introductory statistics course. 20 students registered for a section of the course this term.
What is the conditional probability that the down time is longer than 236 days given that it is already longer than 227 days?
university city is a town of more than 200000 persons with over 50000 university and community college students. it
How can you answer the dual simplex question with maximization objective function and also explain difference between m tecnique and two phase method?
Calculate the range, variance, and standard deviation for these sample data.
What is the probability that at least one of the alterations is discovered? Find the expected value and variance of the number of altered accounts discovered during the audit.
five students were randomly selected from a large university. the act scores for these students were 23 12 27 32 and
the below two question must have a minimum 250 word count and use examples to support the solution. only use usa based
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