Students t-distribution must be used when making inferences about the population mean, , when the population standard
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“Student’s t-distribution must be used when making inferences about the population mean, , when the population standard deviation,
, is not known” is a true statement.
Student A states that the z-score sometimes plays a role when the t-distribution is used.
Explain the conditions that exist and the role played by z that make student A’s statement correct.
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Related Book For
Just The Essentials Of Elementary Statistics
ISBN: 9780495314875
10th Edition
Authors: Robert Johnson, Patricia Kuby
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