A scientist estimates that the mean nitrogen dioxide level in a city is greaterthan 34 parts per billion. To test this estimate, you determine the nitrogendioxide levels for 31 randomly selected days. The results (in parts per billion)are listed to the right. Assume that the population standard deviation is 11. Atα = 0.05, can you support the scientist's estimate? Complete parts (a)through (e).(a) Write the claim mathematically and identify Ho and H₂. Choose from the following.OA. Ho <34Ha: μ ≥ 34 (claim)QD. Ho H≤34Ha >34 (claim)B. Ho: μ=34 (claim)H₂ μ>3430 30 29 28 32 22 40 42 37 20 3728 31 15 24 21 43 26 24 39 17 1626 41 33 19 35 39 23 32 34O E. Ho p≤34 (claim)Ha: μ> 34OC. Ho = 34Ha: μ> 34 (claim)OF. Ho: ≥34 (claim)Ha: μ<34M

Solution-:Given: We want to write the claim mathematically and identify We find test statistic and…

Answered: A scientist estimates that the mean…

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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The data found below measure the amounts of greenhouse gas emissions from three types of vehicles. The measurements are in tons per year, expressed as CO2 equivalents. Use a 0.025 significance level to test the claim that the different types of vehicle have the same mean amount of greenhouse gas emissions. Based on the results, does the type of vehicle appear to affect the amount of greenhouse gas emissions? Click the icon to view the data. What are the hypotheses for this test? O A. Ho: At least one of the means is different from the others. H₁ H₁ H₂ H3 OB. Ho: H₁ H₁: H1 H₂ =H3 H₂ H3 OC. Ho: H₁ H₂ H3 H₁: At least one of the means is different from the others. O D. Ho: H₁ H₂ H3 H₁: H₁ H₂ =H3 Data Table Type A 6.2 6.2 6.5 7.4 7.1 6.1 6.9 7.3 6.9 6.7 Print C Type B 7.7 7.5 8.7 8.1 8.6 8.8 8.4 8.5 Type C 8.5 9.3 9.6 9.1 9.1 9.1 9.8 9.5 9.9 Done O X
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The arm span of a team of athletes was measured and listed in the attached image (Problem-Image2.jpg). a) Calculate the mean arm span, ?̄. b) Complete the table and calculate (to two decimal places of accuracy, the standard deviationof the data.). Check the equation in the attached image (Problem-Image3.jpg)
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The Z-score tells you the number of standard deviations away from the mean (and in what direction) a data value is. The formula: Z = *- can be used to find the Z-score for a single member of the population. Notice X - μ tells you the signed distance the data value (X) is from the mean. When you divide that by the size of each chunk (the standard deviation) you are measuring the distance in units of the size of the standard deviations (how many standard deviations fit in the distance between the data value and the mean) - which gives you the Z-score. The formula X = μ+Z.o can be used to find the value in the population when given the Z-score (signed number of standard deviations). Notice that Z. tells you how far from the mean the data value is (since Z is the number of standard deviations and is the size of each standard deviation the product tells the total distance). So adding the distance from the mean to the mean gives the location along the number line for the data value. A…
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