Pregunta 6 Hargrove Wood Products is a wood products company with lumber, plywood, and paper plants in several areas of the United States. At its La Grande, Oregon, plywood plant, the company makes plywood used in residential and commercial building. One product made at the La Grande plant is 3/8-inch plywood, which must have a mean thickness of 0.375 inches. The standard deviation, ơ, is known to be 0.05 inch. Before sending a shipment to customers, Hargrove managers test whether they are meeting the 0.375-inch requirements by selecting a random sample of n = 100 sheets of plywood and collecting thickness measurements. Null and Alternative Hypothesis: HO: µ Decision Rule : Reject HO if zcal < -citical value z = - Test statistic: (z calculated) z = H1: H or zcal > critical value Conclusion: HO. The Hargrove Wood Products Company does not have sufficient evidence that the mean thickness is different of 0.375, so they are meeting the 0.375-inch requirements. Thus, it will ship the plywood.
Pregunta 6 Hargrove Wood Products is a wood products company with lumber, plywood, and paper plants in several areas of the United States. At its La Grande, Oregon, plywood plant, the company makes plywood used in residential and commercial building. One product made at the La Grande plant is 3/8-inch plywood, which must have a mean thickness of 0.375 inches. The standard deviation, ơ, is known to be 0.05 inch. Before sending a shipment to customers, Hargrove managers test whether they are meeting the 0.375-inch requirements by selecting a random sample of n = 100 sheets of plywood and collecting thickness measurements. Null and Alternative Hypothesis: HO: µ Decision Rule : Reject HO if zcal < -citical value z = - Test statistic: (z calculated) z = H1: H or zcal > critical value Conclusion: HO. The Hargrove Wood Products Company does not have sufficient evidence that the mean thickness is different of 0.375, so they are meeting the 0.375-inch requirements. Thus, it will ship the plywood.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:Pregunta 6
Hargrove Wood Products is a wood products company with lumber, plywood, and paper plants in several areas of the United States. At its La
Grande, Oregon, plywood plant, the company makes plywood used in residential and commercial building. One product made at the La Grande
plant is 3/8-inch plywood, which must have a mean thickness of 0.375 inches. The standard deviation, o, is known to be 0.05 inch. Before
sending a shipment to customers, Hargrove managers test whether they are meeting the 0.375-inch requirements by selecting a random
sample of n = 100 sheets of plywood and collecting thickness measurements.
Null and Alternative Hypothesis: HO: µ
Decision Rule : Reject HO if zcal < -citical value z = -
Test statistic: (z calculated) z =
H1: H
or zcal > critical value
Conclusion:
H0. The Hargrove Wood Products Company does not have sufficient evidence that the mean thickness is
different of 0.375, so they are meeting the 0.375-inch requirements. Thus, it will ship the plywood.
Banco de palabras:
0.55
# 0.375
2.58
Do not reject 0.65
< 0.375
1.96 > 0.375
0.60
= 0.375 Reject < 0.375
1.645
> 0.375
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