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Listed below are measured MPGs from three different categories of vehicles.Vehicle Miles per GallonVehicle Category#1 9.3 9.3 9.3 8.6 8.7 9.3#2 8.7 7.7 7.7 8.7 8.2 9.0 7.4 7.0#3 7.2 7.9 6.8 7.4 6.5 6.6 6.7 6.5 6.5 7.1 6.7 5.5 7.3x bar subscript i s squared subscript i9.91, 8.03, 6.82 .10, .60, .34
Also given that x bar = 7.99
What is the test statistic?Use a 5% significance level (95% confidence level) to test the claim that the different vehicle categories have the same mean MPG.
Please perform a hypothesis test using a .05 significance level on the following information. Next please perform a regression analysis as well as providing a scattered diagram.
Leading product are falling leading to declining revenues. Draft a research proposal for the client based on a scientific methodology.
The percentage rates of home ownership for 8 randomly selected states are listed below. Estimate the population variance and standard deviation for the percentage rate of home ownership with 99% confidence level.
A certain random experiment can result in one of four different possible outcomes, which we'll call A, B, C and D.
Determine the mode for this distribution. Describe why you can't calculate the mean number of times using data in the table.
At.02 significance level is it sensible to conclude that mean number of shoes sold at mall stores is larger than at outlet stores?
In a study designed to determine patientâ??s acceptance of a new pain reliever, 100 physicians each selected a sample of 25 patients to participate in the study.
What is the difference between resampling (bootstrapping) and double sampling in research? Is there any difference or is the same? Please explain your response?
Construct a frequency distribution (class, tally and frequency) for the data set using the indicated number of classes. In the table, include the midpoint, relative frequencies and cumulative frequencies.
The mean area of several thousand apartments in a new development is advertised to be 1250 sq. ft. An engineer measured a random sample of apartments:
Families of size 4 spent a population mean of $360 on a visit to an amusement park, standard deviation of $50 in October 2000. Operators want to know whether families will spend more in 2001.
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.
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