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Author Question: For the multiperiod production scheduling problem in the textbook, period n - 1's ending inventory ... (Read 179 times)

Sportsfan2111

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on: Jun 24, 2018
For the multiperiod production scheduling problem in the textbook, period n - 1's ending inventory variable was also used as period n's beginning inventory variable.
  Indicate whether the statement is true or false

Question 2

A carpet company advertises that it will deliver your carpet within 15 days of purchase. A sample of 49 past customers is taken. The average delivery time in the sample was 16.2 days. Assume the population standard deviation is known to be 5.6 days.
 a. State the null and alternative hypotheses.
  b. Using a critical value, test the null hypothesis at the 5 level of significance.
  c. Using a p-value, test the hypothesis at the 5 level of significance.
  d. What type of error may have been committed for this hypothesis test?


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iman

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Reply #1 on: Jun 24, 2018
Answer to Question 1

T

Answer to Question 2

a. H0:   15
Ha:  > 15
b. Do not reject H0, 1.5 < 1.645 . There is not sufficient evidence at  = .05 to conclude that the average delivery time is more than what is advertised

c. Do not reject H0, .0668 > 0.05 (same conclusion as part b)
d. A Type II error may have been committed since we did not reject H0.


Sportsfan2111

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Reply 2 on: Jun 24, 2018
Excellent

flexer1n1

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Reply 3 on: Yesterday
:D TYSM

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