Mathematics, 27.01.2021 07:10 willasiacochran

The Clear Talk cellular company claims that the average monthly cellular bill of each of their customers is $78.85 with a standard deviation of $7.35. Jolie, a Clear Talk cellular customer, has an average monthly cellular bill of $87.35. Given that the data is approximately normal, standardize the value of the cellular bill and find the area under the normal curve above the standardized cellular bill balance. A.
The area above the standardized cellular bill balance is 1.16.
B.
The area above the standardized cellular bill balance is 0.877.
C.
The area above the standardized cellular bill balance is 0.113.
D.
The area above the standardized cellular bill balance is 0.0548.

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The Clear Talk cellular company claims that the average monthly cellular bill of each of their custo...

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