If appropriate, construct a 95% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013. Round your intermediate step to three decimal places. Round your answer to one decimal place.ANSWER PART 3 How smart is your phone? A random sample of 10 Samsung Galaxysmartphones being sold over the Internet in 2013 had the following prices, indollars:199 169 385 329 269 149135 249 349 299Send data to ExcelAssume the population standard deviation is a-82.Perform the following.Part 1 of 3(a) Explain why it is necessary to check whether the population isapproximately normal before constructing a confidence interval.It is necessary to check whether the population is approximately normalbecause the sample size is less than or equal to 30Part 2 of 3(b) Following is a dotplot of these data. Is it reasonable to assume thatthe population is approximately normal?100 150It isnormal.Part: 2/3Part 3 of 3200 250 300 350reasonable to assume that the population is approximately(c) If appropriate, construct a 95% confidence interval for the mean pricefor all phones of this type being sold on the Internet in 2013. Round yourintermediate step to three decimal places. Round your answer to onedecimal place.A 95% confidence interval for the mean price for allphones of this type being sold on the Internet in 2013is<μ<.

199,169,385,329,269,149,135,249,349,299Part 3:-Confidence level=95%standard deviation()=82sample…

(c) If appropriate, construct a 95% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013. Round your intermediate step to three decimal places. Round your answer to one decimal place. A 95% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013 is<μ<.

(c) If appropriate, construct a 95% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013. Round your intermediate step to three decimal places. Round your answer to one decimal place. A 95% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013 is<μ<.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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