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Question 2 A data provider wants to check the monthly data consumption of people in Cape Town. Listed below is the monthly data usage in megabytes, of a sample of 15 people selected randomly, is listed below. The data provider has determined from the specifications of his routers that $\sigma = 250,672$. Your final answers must be accurate to three decimal places. 117 115 225 118 285 322 759 675 155 455 885 275 125 105 123 2.1 Determine the mean $\bar{x}$. (1) 2.2 Determine the coefficient of variation. (2) 2.3 Construct an 80% confidence interval for $\mu$. (5)

          Question 2
A data provider wants to check the monthly data consumption of people in Cape Town. Listed
below is the monthly data usage in megabytes, of a sample of 15 people selected randomly, is listed
below. The data provider has determined from the specifications of his routers that $\sigma = 250,672$.
Your final answers must be accurate to three decimal places.
117
115
225
118
285
322
759
675
155
455
885
275
125
105
123
2.1 Determine the mean $\bar{x}$.
(1)
2.2 Determine the coefficient of variation.
(2)
2.3 Construct an 80% confidence interval for $\mu$.
(5)

$Question 2 A data provider wants to check the monthly data consumption of people in Cape Town. Listed below is the monthly data usage in megabytes, of a sample of 15 people selected randomly, is listed below. The data provider has determined from the specifications of his routers that σ = 250,672. Your final answers must be accurate to three decimal places. 117 115 225 118 285 322 759 675 155 455 885 275 125 105 123 2.1 Determine the mean x̅. (1) 2.2 Determine the coefficient of variation. (2) 2.3 Construct an 80% confidence interval for $\mu$. (5)$

Added by Eugenia R.

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