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Marcus Robert Real Estate Company wants to test whether the average sale price of residential properties in a certain size range in Bel Air, California, is approximately equal to the average sale price of residential properties of the same size range in Marin County, California.
The company gathers data on a random sample of 32 properties in Bel Air and finds x‾ = $2.5 million and s = $0.41 million. A random sample of 35 properties in Marin County gives x‾= $4.32 million and s = $0.87 million. Is the average sale price of all properties in both locations approximately equal or not? Explain
each person received was determined by randomization. For each person who was sent one of the surveys, the researcher recorded whether or not a completed survey was returned.
Find the mean and variance of . Then write a MATLAB program to estimate the PDF of .- Compare the estimated PDF with a Gaussian PDF of the same mean and variance.
Construct a runs chart for the empty weight. Include a line at the average empty weight for reference and comment on the chart. Construct a runs chart for the full weight. Include a line at the average full weight for reference and comment on the ..
Henry performed a two-tailed test for an experiment in which N = 24. He could not find his table of t critical values, but he remembered the tcv at df = 13. He decided to complete his obt.with this tcv. Is he more likely to make a type I or II err..
How many commercials' worth of data do I need to have a margin of error no more than 3, the correct set of hypotheses
Critically discuss the general characteristics of a research study for which an independent-measures t would be the appropriate test statistics
CHris Turlock owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city.
Your company ships a lot of packages needing quick delivery and short notice. In the past, you have used Speedy Air Delivery Service, but you are beginning to receive complaints from customers who say they are not receiving their packages on time.
it is known that 30 of all customers of a major credit card pay their bills in full before any interest charges are
She figures that each box costs $ 2.59 plus $ 0.21 shipping and handling, which totals $ 2.80, then she adds $ 0.70 profit to each box and sells it for $ 3.50. Do you think this is a good pricing strategy? How would it compare to marking up by a p..
question in a multiple regression equation two independent variables are considered and the sample size is 25. the
assume that a sample of size 900 is to be taken from a population that contains 34 people older than 50.a what is the
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