A recent study reported that Comcast Cable was the fastest broadband provider in the US, with an
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A recent study reported that Comcast Cable was the fastest broadband provider in the US, with an average download speed of 17.2 megabits per second (source: gigaom.com). In a sample of 49 random observations of Comcast’s performance in the greater Minneapolis area, you find an average download speed of 16.7 megabits per second. Is this sample result sufficient evidence to make the case that Comcast’s average download speed in the greater Minneapolis area is slower than 17.2 megabits per second? Use a significance level of .05. Assume that the population standard deviation is 1.4 megabits per second. Show the competing hypotheses as:
H0: μ > 17.2
Ha: μ < 17.2
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Related Book For 
Understanding Business Statistics
ISBN: 978-1118145258
1st edition
Authors: Stacey Jones, Tim Bergquist, Ned Freed
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