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The critical boundaries (Zcrit) for a hypothesis test are z = +1.96 and z = -1.96. If the z-score for the sample data is z = -1.90, then what is the correct statistical decision?
A) Reject H1
B) Fail to reject H1
C) Reject H0
D) Fail to reject H0
Find the probability that a randomly selected subscriber spent more than $8000 for personal or vacation travel during the past 12 months.
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Find the critical value z that corresponds to the given confidence level of 90%.
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