the following display from a TI-84 plus Calculator presents the results of a hypothesis test for a population mean μ.  μ < 57 t = -0.813808 p = 0.209974 x̄ = 56.76 Sx = 2.02180 n= 47 how many degrees of freedom are there? A). 46  B). 47   C).57     D). 48

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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the following display from a TI-84 plus Calculator presents the results of a hypothesis test for a population mean μ. 

μ < 57

t = -0.813808

p = 0.209974

x̄ = 56.76

Sx = 2.02180

n= 47

how many degrees of freedom are there?

A). 46  B). 47   C).57     D). 48

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