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1. What is a power curve and how is it applicable to hypothesis testing?
2. What is an operating characteristic curve and how is it related to the power curve for a test?
3. A hypothesis test has been set up and is to be conducted at the level of significance. If the sample size is doubled, what will be the effect on α? On β?
assume the readings on thermometers are normally distributed with a mean of 0 degrees celsius and a standard deviation
If the population mean is 36, are the serial killers significantly more introverted at the .05 level? Perform the appropriate one-tailed test.
a. Construct a time series plot. What type of pattern exists in the data? b. Use exponential smoothing with α = 0.4 to develop a forecast of demand for week 13. What is the resulting MSE?
A wire of length 50 feet is attached to the ground and to the top of an antenna. The height of the antenna is 10 feet larger than the distance from the base of the antenna to the point where the wire is attached to the ground.
Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better? What is blocking and how does it reduce "noise"?
suppose that a company has six plants which are designated as plant 1 plant 2 ... plant 6.a. if sampling occurs without
The data can be found in the Excel file named "ProjectData - Post Graduated Survey" in Blackboard. Use this data to answer the following questions:
Polls showed the two main candidates in the 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has margin of error less than 1%. Roughly how large a sample w..
suppose x represents a point picked at random from the interval 0.1 on the x-axis and y is a point picked at random
1. Show that the closure of a nowhere dense set is nowhere dense. 2. Let (S, d) and (V, e) be two metric spaces. On the Cartesian product S × V take the metric ρ((x, u), (y, v)) = d(x, y) + e(u, v).
1. Suppose Subway has carried out the study, using the sample size determined in that exer- cise, and 27.5% of the franchisees say they are pleased with their relationship with Subway. Construct and interpret the 95% confidence interval for the po..
He (given that) the true proportion of perfect condition items is only 80% what is the probability that the lot will not be shipped?
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