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Specify a large population that you might want to study and describe the type numeric measurement that you will collect (examples: a count of things, the height of people, a score on a survey, the weight of something). What would you do if you found a couple outliers in a sample of size 100? What would you do if you found two values that were twice as big as the next highest value?
You may use examples from your area of interest, such as monthly sales levels of a product, file transfer times to different computer on a network, characteristics of people (height, time to run the 100 meter dash, statistics grades, etc.), trading volume on a stock exchange, or other such things.
Construct a demerits per unit control chart. Revise the control limits if necessary, assuming special causes for points that are out of control.
Construct a 99?% confidence interval to estimate the average number of flights per day handled by the system.
The probability that the speed will be more than 70 words per minute is 0.15. Find the mean and the standard deviation of typing speed.
Given the following partial relative frequency table
in the formula for a variance what is the sum if we dont square the x-u values? hint there is a special name for this
The average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes: 5 4 5 4 4 3 6 4 3 3 5 6 3 3 2 7 4 5 2 2 2 3 52
You want to poll a random sample of 100 students on campus to see if they are in favor of the proposed location for the new student center.
Determine a 99% confidence interval for the true difference between the failure proportions during the warranty period. How precisely have we estimated µ1 - µ2?
Let {Y(t), t ≥ 0} be the stochastic process defined in Question no. 21. (a) Calculate the distribution of Y(1 )+ Y(2).
Discriminant functions are linear combinations of the predictor or independent variables, which will best discriminate between categories
There are two main categories of food - conventional and organic ingredients - and four food groups. The data are shown in the following table.
warren county telephone company claims in its annual report that the typical customer spends 61 per month on local and
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