Mathematics, 28.08.2019 00:00 Lewis5442
The average cost per night of a hotel room in new york city is $273 (smartmoney, march 2009). assume this estimate is based on a sample of 45 hotels and that the sample standard deviation is $65.
a. with 95% confidence, what is the margin of error (to 2 decimals)?
b. what is the 95% confidence interval estimate of the population mean?
note: this is what i got but it is wrong. a. 18.99 b. [254.008, 291.992]
Answers: 1
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The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82
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Math each whole number with a rational,exponential expression
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One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%
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The average cost per night of a hotel room in new york city is $273 (smartmoney, march 2009). assume...
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