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A survey of the mean number of cents off that coupons give was conducted by randomly surveying one coupon per page from the coupon sections of a recent San Jose Mercury News. The following data were collected: 20¢; 75¢; 50¢; 65¢; 30¢; 55¢; 40¢; 40¢; 30¢; 55¢; $1.50; 40¢; 65¢; 40¢. Assume the underlying distribution is approximately normal.
x ¯ = __________ s x = __________ n = __________ n -1 = __________Define the random variables X and X ¯ in words.Which distribution should you use for this problem? Explain your choice.Construct a 95% confidence interval for the population mean worth of coupons. State the confidence interval. Sketch the graph. Calculate the error bound.If many random samples were taken of size 14, what percent of the confidence intervals constructed should contain the population mean worth of coupons? Explain why.
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Questions & Answers
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Shambhu
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Show the necessary steps with description in resource monitoring process (CPU,memory,disk and network)
What is software engineering
Software engineering is a branch of computer science directed to writing programs to develop Softwares that can drive or enable the functionality of some hardwares like phone , automobile and others
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Vincent
What is the command to list the contents of a directory in Unix and Unix-like operating systems
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The name of the author of our software engineering book is Ian Sommerville.
the set of intruction given to the computer to perform a task
Noor
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Source:
OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18
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