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Q1. 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?
Q2. What foods do aeronautical engineers like?
There were three types of food, and the researcher recorded which foods were bought.
Peanut Butter Banana Hamburger
15 7 4
(a) Use appropriate words and statistics to describe the statistical results. Based on this data which food seems to be prefered?
explain all the nature of statistics
1.) Consider two chains R and S, each having 3 and 6 links respectively. Each link's resisting strength is normally distributed with a mean of 60,000 psi and standard deviation of
Lifts usually have signs indicating their maximum capacity. Consider a sign in a lift that reads “maximum capacity 1400kg or 20 persons”. Suppose that the weights of lift-users are
Consider the sample data for plants A, B, C & D of the above company, which are tabulated in table 1. Test whether the four means are equal at the 5% level of significance. Perform
Discrete Standard Deviation For calculating standard deviation in discrete series any of the following methods may be applied (1) Actual mean method. (2) Assumed mean method. (
a ball is projected so as to attain a maximum range. Find the maximum height attained if initial velocity is u
What is meant by the full cost of a product? Many organizations use the expression top dollars to mean the complete creating or technology cost of a product. To this organiz
1. It is often a good idea to start by visualizing the data. Time series data should have "time" on the horizontal axis. What are you going to have on the vertical axis? If you use
what are the characteristics
The next step is to determine the sources of data to be used. The researcher has to decide whether he has to collect primary data ror depend exclusively on secondary data. Sometime
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