describe the relationship between gender and course of study, Basic Statistics

describe the relationship between gender and course of study, Basic Statistics

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In Ireland, Davoren et el (2015) report that that 65.2% of male University students self-reported alcohol consumption levels which are classified as hazardous.
A random sample of 30 Australian male university students were interviewed about their alcohol consumption.
a. If Australian male university student do not differ from the Irish male university students, what is the probability that our random sample of 30 Australian male students will contain 15 or less students with hazardous alcohol consumption levels? (1 mark)

b. If Australian male university students do not differ from the Irish male university students, we would predict 25% of all samples to contain fewer than how many students with hazardous alcohol consumption? (1 mark)

c. If Australian male university students do not differ from the Irish male university students, estimate the mean number of students with hazardous alcohol consumption per sample of size 30 males? Show any working. (1 mark

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