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What is the purpose of having two t test? why not just be able to conduct a t test for either independent or matched?
Find the percent of a standard Normal model found in the given region. Round to the nearest hundredth of a percent.
Exploitron, Inc. conducts a random survey of 700 of their workers and finds that the average employee earns $31,782 per year, with a standard deviation of $622. The Census reports that the average American worker makes $30,059. The CEO of Exploitron ..
find the standard score z such that the area above the mean and below z under the normal curve is 0.3975.find the
Rresearch analyst in an environmentally-concerned consultancy group. Your team leader has given you a research task to investigate the empirical relationship between Australia's Gross Domestic Product
Determine the probability mass function of the salesperson's November sales (in $). What is the probabiity that his sales for November will be less than 100k? Find the mean and standard deviation of the November sales.
Peter and Ray built a bike ramp from 20 sheets of 4ft. X 8ft. plywood and propped it up on one end with some bricks. The finished ramp is rectangular. Show 3 ways they might have arranged the wood and give the measurment for each side.
Using a simulation of 25 random numbers. Find average profits for order quantities of interest. Investigate in intervals of 500.
What sample size would be required to obtain the error of ±10 square millimeters with 99 percent confidence?
construct a 95 confidence interval to estimate the population proportion with a sample proportion equal to 0.60 and a
It does not matter, when data are skewed mean and median are the same.
1.an inventor claims that a device increases gas mileage by 4. a test of the device was done by randomly selecting 10
Evaluate the mean wait time and throughput rate
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