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a. The marks on a statistics midterm test are normally distributed with a mean of 78 and a standard deviation of 6.
b.What is the probability that a class of 50 has an average midterm mark that is more than 75?
c.What is the mark of the top 10% students?
Pools sells above ground model for 'p' dollars each. The monthly revenue from the sale of the pool is given by
Describe each of the following methods of statistical inference in detail (Please try to use layman's terms).
Twenty times they sold 6 cars, they never sold 7 cars, three times they sold 8 cars and one time they sold 9 cars. Find the probability that at most 4 cars were sold in a week.
Chi-square tests are great to show if distributions differ or if two variables interact in producing outcomes. What are some examples of variables that you might want to check using the chi-square tests? What would these results tell you?
Use the Internet or other resources to find an example of a research article in a professional journal of interest to you, and not in daily periodicals or weekly publications. Prepare a synopsis of the article including the following:
The Nile Superstore is conducting a survey of consumer preferences for a new wireless, e-book reader. A sample of 160 people reveals that 120 would buy the new reader. Estimate the value of the population proportion.
Customers are independent, identical, exponential distrubution of service time. What is the probability that the person will be the last to leave the bank assuming that no other customers arrive?
Determine payback period for implementing Oracle Discoverer? Assume that WebFocus will be in-place until December 31 and the migration to Oracle will be done concurrently and is expected to be completed and operational by Dec 31 as well.
First step of analytical hierarchy process doesn't include?
What is the probability of receiving more than three pieces of junk mail today?
A permutation resample for a two-sample test
One day, you notice your 6' 2" roommate's size 12 shoes and comment, "I think height and foot size are correlated". You're somewhat surprised (and irked) by his response, "I think short people have big mouths."
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