Funded projects revealed
A sample of 28 of 180 funded projects revealed that 14 were valued at $17,260 each and 14 were valued at $20,620 each. From the sample data, estimate the total value of the funding for all the projects. (Enter your answers to two decimal places.)
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A plastics manufacturer has developed the new kind of plastic trash can and proposes to sell them with unconditional 6-year warranty. To see whether this is economically feasible,
Find lengths of each piece of wire which make sum of areas of square and triangle a maximum? Find unknown(s) in terms of the variable and the word phrase.
Determine the level of confidence assigned to an interval estimate of the mean formed using the interval x - 1.74 · ?x to x + 1.74 · ?x. Determine the level of confidence assigned to an interval estimate of the mean formed using the i
The insurance company wants to forecast amount of life insurance held by family heads. Company drew the sample of 6 family heads and secured the given information.
To generate the profit from its online publishing service, SOBooks.com requires to know how demand for novels depends on price it charges.
Determine the 98% confidence interval to estimate the true mean textbook cost for the semester based on this sample.
At the library 200 people were surveyed about magazines they read. 75 read US News, 45 read Rolling Stone, 120 read Time, 15 read all three magazines.
Determine the p-value. (Give your answer correct to four decimal places.) Describe the appropriate conclusion. Reject the null hypothesis, there isn't significant evidence that the mean is less than 52.
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