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a business finds the average cost required to complete a project is $416 with a standard deviation of $57. A sample of 36 project cost reports was selected at random. Assuming that the distribution of the costs is normal, what is the probability that the average for this sample is between $400 and $425?
Find at least what percentage of all homeowners in this city pay a monthly mortgage of 865 to 1,675.00.
The summation sign is usually represented by:
Suppose that a claim is made that the average billionaire is 60 years old or younger.The following is a random sample of billionaires. Conduct the test using the 0.05 level of significance.
Specification limits for a particular characteristic of a product indicate the values at which the product will operate properly. Assume we have a product with an upper specification limit of 7.25 and a lower specification limit of 4.0. As long as..
Briefly describe your experiment. You must have a valid and ethical experiment (NOT an observational study) and/or question.
Consumer products companies design different promotional activities to accomplish different goals. According to a spokesperson for General Mills, the company's cents-off coupon offers are designed to convince people to buy its products
Describe a scenario related to the final project in which you would use repeated-measures ANOVA. Describe a scenario related to the final project in which you would use MANOVA.
After 1,000-trial simulation, examine statistical information generated and compare output of simulation with your findings in Problem .Briefly describe the significant similarities and differences.
Estimating the individual score using normal distribution and find the minimum SAT score needed to be accepted?
Use α =.01 and test for a significant difference. What is your conclusion?
Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead.
Is there evidence of difference in median performance between two methods? (Use α = 0.05.)
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