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In: Statistics and Probability

55. Best Electronics Inc. offers a “no hassle” returns policy. The daily number of customers returning...

55. Best Electronics Inc. offers a “no hassle” returns policy. The daily number of customers
returning items follows the normal distribution. The mean number of customers returning
items is 10.3 per day and the standard deviation is 2.25 per day.
a. For any day, what is the probability that eight or fewer customers returned items?
b. For any day, what is the probability that the number of customers returning items is
between 12 and 14?
c. Is there any chance of a day with no customer returns?

I need helping showing this and computing this in excel

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Expert Solution

EXCEL commands and outputUsing statistical table z values

orchestra answered 1 year ago
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