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26.11.2019 •
Mathematics
Suppose that a manager is interested in estimating the average amount of money customers spend in her store. after sampling 36 transactions at random, she found that the average amount spent was $35.25. she then computed a 95% confidence interval to be between $31.84 and $38.66. which statement gives a valid interpretation of the interval? the store manager is 95% confident that the average amount spent by the 36 sampled customers is between s31.84 and $38.66. there is a 95% chance that the mean amount spent by all customers is between $31.84 and $38.66. o there is a 95% chance that a randomly selected customer will spend between $31.84 and $38.66. the store manager is 95% confident that the average amount spent by all customers is between $31.84 and s3866
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Ответ:
The store manager is 95% confident that the average amount spent by all customers is between $31.84 and $38.66 .
Step-by-step explanation:
The interpretation of 95% confidence interval says that a person can be 95% confident that the true population mean lies in it.Given : After sampling 36 transactions at random, she found that the average amount spent was $35.25.
She then computed a 95% confidence interval to be between $31.84 and $38.66.
Interpretation: A person can be 95% confident that the true population mean amount spent by all customers is between $31.84 and $38.66.
So, the valid interpretation of the interval would be :-
The store manager is 95% confident that the average amount spent by all customers is between $31.84 and $38.66 .
Ответ:
the answers are d uring military operations outside declared hostilities you may delay contact with local authorities
military members are never authorized to surrender