This package of sliced cheese cost $2.97. How much would a package with 18 slices cost at the same price per slice
1 answer:
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Answer: -2.10
Step-by-step explanation:
Given :
Sample size : n= 50, since the sample size is greater than 30 , so we apply z-test.
Sample mean :
Standard deviation :
The test statistic for population mean :-
i.e.
Hence, the value of the test statistic = -2.10