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The time from product inception and design to marketing and sales is important for application software in mobile devices. For the last 20 products, given Table shows such times (in weeks) for a software organization.
Construct an appropriate control chart and comment on the organization's responsiveness to market needs.
Separately choose at random 2 of those under 21 to interview about attitudes toward alcohol. You have given every student at the party the same chance to be interviewed: what is that chance?
a survey of 25 randomly selected customers found the ages shown in years. 28 36 40 26 33 24 11 47 23 33 46 38 35 14 33
The following are 30-day Euroyen prices on an index from 0 to 100%: 99.24, 99.37, 98.33, 98.91, 98.51, 99.38, 99.71, 99.21, 98.63, 99.10. Find µ, σ, σ2, and the median.
given a pair of fair dice each face is equally likely to show upward.what is the expectation of this random variable
One measure of the overall sampling error in the entire distribution of sample means is the
If the weekly salaries are normally distributed, estimate the fraction of employees that make more than $300 per week.
Given the set A = {1, 2, 3} and the set S = {(x, y) | x and y in A}. Consider the relation ≤ defined on S as follows: ((x1, y1) ≤ (x2, y2) if x1 ≤ x2 and y1 ≤ y2. Draw the directed graph of this relation. Show that it is a partial order. Explain why ..
the following data represents the time it takes a company to respond to an account inquiry for opening a new account.a.
Construct a 90% two-sided confidence interval onthe difference between the proportion nonconforming in processes 1 and 2. Based on this confidence interval, can you conclude at a significance level of 10% that the difference is not equal to 10%? W..
The important thing to keep in mind when using that statistic is that there may be situations in which it would be completely misleading to compare Person A's cost per mile with Person B's cost per mile.
an inspector obtains four samples with three observations in each. the actual measurements in centimeters are shown
Consumer spending. An analyst at a large credit card bank is looking at the relationship between customers' charges to the bank's card in two successive months. He selects 150 customers at random
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