niyawilliams23
28.08.2019 •
Mathematics
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]
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Ответ:
Ответ:
A
Step-by-step explanation:
Self explanatory.