Question

(05.03 LC) Deana's Deli has a mean delivery time of 23 minutes with a standard deviation of 2 minutes. Determine the z-score for the number of sandwiches delivered in less than 24 minutes. −0.5 0.5 11.5 12

Answer 1

0.5

Explanation:

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Answer 2

0.5

Explanation:

Given: Mean= 23 minutes

Standard deviation= 2 minutes

x= 24 minutes.

Lets find the z-score for the number of sandwiches delivered in less than 24 minutes.

Formula;
`z-score= (x-mean)/(standard\ deviation)`

z-score=
`(24-23)/(2)`

⇒ z-score=
`(1)/(2) = 0.5`

∴ z-score will be 0.5.

Hence, 0.5 is the z-score for the number of sandwiches delivered in less than 24 minutes.