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63 and 64 solve both

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MATLAB: An Introduction with Applications
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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63 and 64 solve both
Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. Listed below are the measured radiation absorption rates (in W/kg) corresponding to various cell phone models. If one of each model is measured for radiation and the results are used to find the measures of variation, are the results typical of the population of cell phones that are in use? 1.05 1.38 0.77 0.73 1.32 1.14 1.45 1.06 0.94 1.05 0.69 The range of the sample data is (Round to three decimal places as needed.) Sample standard deviation = (Round to three decimal places as needed.) Sample variance =O (Round to three decimal places as needed.) If one of each model is measured for radiation and the results are used to find the measures of variation, are the results typical of the population of cell phones that are in use? O A. No, because some models of cell phones will have a larger market share than others. Measures from different models should be weighted according to their size in the population. O B. No, because it is necessary to have at least 5 of each cell phone in order to get a meaningful result. Only including one of each cell phone model is not representative of each cell phone model. OC. Yes, because the results from any sample of cell phones will be typical of the population. O D. Yes, because each model is being represented in the sample. Any sample that considers all possible cell phone models will produce results typical of the population of cell phones.
Transcribed Image Text:Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. Listed below are the measured radiation absorption rates (in W/kg) corresponding to various cell phone models. If one of each model is measured for radiation and the results are used to find the measures of variation, are the results typical of the population of cell phones that are in use? 1.05 1.38 0.77 0.73 1.32 1.14 1.45 1.06 0.94 1.05 0.69 The range of the sample data is (Round to three decimal places as needed.) Sample standard deviation = (Round to three decimal places as needed.) Sample variance =O (Round to three decimal places as needed.) If one of each model is measured for radiation and the results are used to find the measures of variation, are the results typical of the population of cell phones that are in use? O A. No, because some models of cell phones will have a larger market share than others. Measures from different models should be weighted according to their size in the population. O B. No, because it is necessary to have at least 5 of each cell phone in order to get a meaningful result. Only including one of each cell phone model is not representative of each cell phone model. OC. Yes, because the results from any sample of cell phones will be typical of the population. O D. Yes, because each model is being represented in the sample. Any sample that considers all possible cell phone models will produce results typical of the population of cell phones.
Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Find the probability that a given score is less than 3.56 and draw a sketch of the region. Sketch the region. Choose the correct graph below. O A. OB. OC. 3.56 -3.50 3.58 The probability is O (Round to four decimal places as needed.)
Transcribed Image Text:Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Find the probability that a given score is less than 3.56 and draw a sketch of the region. Sketch the region. Choose the correct graph below. O A. OB. OC. 3.56 -3.50 3.58 The probability is O (Round to four decimal places as needed.)
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