Hypothesis:  Students spend an average of 35 hours per week studying H0 : μ = 35 H1 : μ ≠ 35 Sample data:  X̄= 27.71 hours n=34  p= 0.815

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Hypothesis:  Students spend an average of 35 hours per week studying

H0 : μ = 35

H1 : μ ≠ 35

Sample data: 

X̄= 27.71 hours

n=34 

p= 0.815

Test values:

z= -4.751

p= 0.0001

np > 10  n(1-p) > 10

34*0.815 = 27.71 

34*(1-0.815) = 6.29 

Do I fail to reject the hypothesis or do I reject a hypothesis? 

Can you please explain,  thank you

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