The Library charges a fine each day that a book is late. If Ben recently paid a $3.77 fine for a book that was 13 days late, wha
1 answer:
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Answer:
b
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given : Sample size : , which is a small sample (, 30) so we use t-test.
Sample mean :
Standard deviation :
Significance level :
Critical value :
The confidence interval for population mean is given by :-
Hence, a 95% confidence interval for the population mean =
Answer:
150 miles
Step-by-step explanation:
In this problem, we are only interested in the distance that Lauren drove, this means that her average speed (75 mph to the cost, and 25 mph on the way back) does not matter since the distance remains the same. If one leg of trip is 75 miles long, the total mileage for the round trip is:
Lauren drove 150 miles.