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The entrance exam at a university is normally distributed with a mean of 520 and a standard deviation of 75. If only the top 10% of hte students are accepted, approximately, what is the lowest score for admittance into the university?
A psychologist studied self-esteem scores and found the data set to be normally distributed with a mean of 50 and a standard deviation of 6. A raw score of 47 is associated with what percentile?
Sketch a scatter plot that could represent data from each of following. Label the axes to indicate the independent and dependent variable.
Establish an approximate design to MTBF required for a system that will result in an approximate minimum total cost over a five year period if the system is to be operated 7500 hours per year
What is the average information per symbol, H(X) without any blocks being formed? What is the average information per symbol, H(X) when the blocks are formed?
A contract was given for the cost of making a new aircraft component. The actual cost, X, in $50,000, is predicted by the probability density function
Find the probability of type I error if exactly 60% of the voters favor the use of these fuels. What is the type II error probability if 75% of the voters favor this action?
question a random sample is taken from a population. the data points are 5 4 9 2 1a what is the mode?b calculate the
The firms are actually violating at least one regulaltion, what is the pmf of the number of firms visited by the inspector that are in violation of at least one regulation?
what is the appropriate procedure to test for significant difference in means between two groups? Implement the procedure using the critical-value method and what is the p-value?
Why do we use graphical displays of the data from our research, such as Pareto Charts, Bar Charts, Pie Charts, Flow Charts, or Process Control Charts?
question heights of women have a bell-shaped distribution with a mean of 163cm and a standard deviation of 5cm.
An automobile assembly line operation has a scheduled mean completion time, mean, of 12.8 minutes. The standard deviation of completion times is 1.2 minutes.
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