A random sample of 8 steel beams has an average compressive strength of 56,598 psi with a standard deviation of 564 psi. Since the value of studentized average compressive strength of 56,598 psi is strength of the steel beams from which this sample was taken is 56,000 psi is level of significance of _and _t(0.025,7) the hypothesis that the true average at a

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 30E
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A random sample of 8 steel beams has an average compressive strength of 56,598 psi with
a standard deviation of 564 psi. Since the value of studentized average compressive
strength of 56,598 psi is and
_t(0.025,7) the hypothesis that the true average
strength of the steel beams from which this sample was taken is 56,000 psi is .
at a
level of significance of
Lütfen birini seçin:
O a. 2.97, greater, rejected, 0.05
O b. 2.20335, less, accepted, 0.05
O c. 2.9567, greater, rejected, 0.01
O d. 3, greater, accepted, 0.005
O e. 3.01156, greater, rejected, 0.005
Transcribed Image Text:A random sample of 8 steel beams has an average compressive strength of 56,598 psi with a standard deviation of 564 psi. Since the value of studentized average compressive strength of 56,598 psi is and _t(0.025,7) the hypothesis that the true average strength of the steel beams from which this sample was taken is 56,000 psi is . at a level of significance of Lütfen birini seçin: O a. 2.97, greater, rejected, 0.05 O b. 2.20335, less, accepted, 0.05 O c. 2.9567, greater, rejected, 0.01 O d. 3, greater, accepted, 0.005 O e. 3.01156, greater, rejected, 0.005
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ISBN:
9780321964038
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GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
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Pearson Addison Wesley,