Daily demand for a product is 130 units, with a standard deviation of 15 units. The review period is 10 days and the lead time is 10 days. At the time of review there are 70 units in stock. If 90 percent service probability is desired, how many units should be ordered? (Use Excel's NORMSINV() function to find the correct critical value for the given a-level. Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to the nearest whole number.) Ordered quantity units

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Daily demand for a product is 130 units,
with a standard deviation of 15 units. The
review period is 10 days and the lead time
is 10 days. At the time of review there are
70 units in stock.
If 90 percent service probability is desired,
how many units should be ordered? (Use
Excel's NORMSINV() function to find the
correct critical value for the given a-level.
Do not round intermediate calculations.
Round "z" value to 2 decimal places and
final answer to the nearest whole number.)
Ordered quantity
units
Transcribed Image Text:Daily demand for a product is 130 units, with a standard deviation of 15 units. The review period is 10 days and the lead time is 10 days. At the time of review there are 70 units in stock. If 90 percent service probability is desired, how many units should be ordered? (Use Excel's NORMSINV() function to find the correct critical value for the given a-level. Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to the nearest whole number.) Ordered quantity units
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