Suppose that students' commuting time at CSN

Question # 00612360 Posted By: rey_writer Updated on: 11/03/2017 12:14 PM Due on: 11/03/2017
Subject Mathematics Topic Probability Tutorials:
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Students' Commuting Time at CSN

Suppose that students' commuting time at CSN, represented by the variable X, has mean= 29 minutes and standard deviation = 9 minutes. There are 6000 students at CSN and we are about to take a random sample of 40 students.

a) Can we know in advance what the mean commuting time for the students in the sample will be?

b) Calculate the probability that the sample mean will be within 2 minutes of the population mean.

c) If we increase sample size from 40 to 100, what will happen to the probability of observing the sample mean within 2 minutes from the population mean?

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  1. Tutorial # 00610901 Posted By: rey_writer Posted on: 11/03/2017 12:15 PM
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