A scientist estimates that the mean nitrogen dioxide level in a city is greater than 31 parts per billion. To test this estimate, you determine the nitrogen dioxide levels for 31 randomly selected days. The results (in parts per billion) are listed to the right. Assume that the population standard deviation is 7. Atα = 0.01, can you support the scientist's estimate? Complete parts (a) through (e).C(a) Write the claim mathematically and identify Ho and H₂. Choose from the following.OA. Ho: H=31OB. Ho: μ≤31Ha: μ>31 (claim)Ha: μ> 31 (claim)O C. Ho: μ=31 (claim)Ha: μ>31OF. Ho: <31O D. Ho: ≤31 (claim)O E. Ho: 231 (claim)H₂:μ>31H₂: μ<31Ha: μ231 (claim)(b) Find the critical value and identify the rejection region.Zo =(Round to two decimal places as needed.)Rejection region: z(c) Find the standardized test statistic.z =(Round to two decimal places as needed.)(d) Decide whether to reject or fail to reject the null hypothesis.O Fail to reject HoO Reject Ho(e) Interpret the decision in the context of the original claim.At the 1% significance level, thereenough evidence tothe scientist's claim that the mean nitrogen dioxide level in the city is greater than 31 parts per billion.e21 43 40 28 19 28 36 14 19 40 4436 25 27 16 30 40 42 23 17 35 2534 32 38 30 32 19 24 25 28

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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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Please tell the steps to solve this problem using Ti-84 Calculator. Testing:H0:μ=25.9H1:μ<25.9Your sample consists of 38 subjects, with a mean of 25.3 and standard deviation of 1.41.Calculate the test statistic, rounded to 2 decimal places.
complete the following details please
What is the population standard deviation using the following formula
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
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 0.05 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? OA. Ho: H₁ H₂ H3 H₁: H₁ H₂ H3 OB. Ho: H₁ H₂ =H3 H₁: At least one of the means is different from the others. O C. Ho: At least one of the means is different from the others. H₁: H₁=H₂ =H3 OD. Ho: H₁ H₂ H3 H₁: H1₁ H₂ H3 Determine the test statistic. F = (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to two decimal places as needed.) What is the conclusion of the test? the null hypothesis. Conclude that the type of vehicle Data Table C Type A 6.5 6.2 6.5 6.5 5.8 7.5 6.4 6.4 6.2 6.9…
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Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table, Click to view page 2 of the table. Step 1 теan(u) s tan dard o 90 115 The area of the shaded region is (Round to four decimal places as needed.) Step 2 Required pr X-µ = P = P (Z < 1 = P (Z < 2 = 0.9773 Enter your answer in the answer box and then click Check Answer. %3D All parts showing Clear All Final Check P Type here to search hp
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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Solve question 5. Show work for it aswell please with the steps.
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