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Author Question: Operations managers often use work sampling to estimate how much time workers spend on each ... (Read 99 times)

naturalchemist

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on: Feb 14, 2020
Operations managers often use work sampling to estimate how much time workers spend on each operation. Work sampling—which involves observing workers at random points in time—was applied to the staff of the catalog sales department of a clothing manufacturer. The department applied regression to the following data collected for 40 consecutive working days:

TIME:  y = Time spent (in hours) taking telephone orders during the day

ORDERS: x1 = Number of telephone orders received during the day

WEEK: x2 = 1 weekday, 0 if Saturday or Sunday

Consider the complete 2nd-order model:

E(y) = β0 + β1x1 + β2(x1)2 + β3x2 + β4x1x2 + β5(x1)2x2

Explain how to conduct a test to determine if a quadratic relationship between total order time and the number of orders taken is necessary in the regression model above. Specify the null and alternative hypotheses that are to be tested.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by naturalchemist on Feb 14, 2020

eliasc0401

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Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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naturalchemist

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Reply 2 on: Feb 14, 2020
Thanks for the timely response, appreciate it

juliaf

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Reply 3 on: Yesterday
Wow, this really help

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