A six-pack of soda costs $2.49, a 12-pack of soda costs $3.99, and a 24-pack of soda costs $5.49. Which pack has the lowest cost
1 answer:
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Answer: C.
Step-by-step explanation:
The confidence interval for difference of two population mean is given by :-
Given : Level of significance :
Then , significance level :
Critical value :
Hence, a 99% confidence interval for the difference between the mean wait times of everyone who rode both rides