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A software developer is interested in finding what the best color theme should be for an engine diagnostic program for the flight line. He is considering three different color themes (red, green, or blue). To determine which is preferred by his users he invited 60 participants to view the three different designs (colors). He then asked them which one they liked best. The table below presents the number of times each design was chosen by the participants. Red Green Blue 14 18 28 (a) Use appropriate words and statistics to describe the statistical results. Based on this data which design should he use?
Red
Green
Blue
14
18
28
Use appropriate words and statistics to describe the statistical results. Based on this data which design should he use?
When the non-parametric statistics utilized? Write down an example.
A breakdown of the responses is shown in the accompanying table. Is there evidence at the 10% level to infer that the responses differ among the three groups of employees?
consider the uniform rectangular distribution on the space a b wherea lt b with p.d.f. fx 1 b - a a ltx lt ba obtain
Selection of a location for a prospective Wal-Mart creates many questions for executives. A suitable site would be one that has an adequate demand for Wal-Mart offerings, sufficient transportation resources, and an available labor force.
two different analytical tests can be used to determine the impurity level in steel alloys. six specimens are used and
It is used when it doesn't make sense to look at the mean of such variables. Explain analysis of variance, multivariate statistics, and non-parametric methods.
A humane society claimes that less than 36% of U.S. households own a dog. In a random sample of 396 U.S. households, 151 say they own a dog. At x=0.04, is there enough evidence to support the society's claim?
What is the upper limit of the 95% interval? Give your answer to three decimal places. Which of the following assumptions should be checked before constructing the above confidence interval?
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
the specifications on an electronic component in a target acquisition system are that its life must be between 5000 -
Test the claim that for the adult population of one town, the mean annual salary is given by μ = $30,000.
Calculate each of the following values for the data set below (assume it is a population).{3.42, 4.10, 4.15, 4.19, 4.26, 4.85, 5.01, 6.22}
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