MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Pls answer both To find P-Value— To find t0=
Calcium is essential to tree growth. In 1990, the concentration of calcium in precipitation in Chautauqua, New York, mg was 0.11 milligram per liter A random sample of 8 precipitation dates in 2018 results in the following data: 0.126 0.183 0.120 0.234 0.313 Ho: P = 0.11 H₁: μ # 0.11 (Type integers or decimals. Do not round.) Find the test statistic. to = (Round to two decimal places as needed.) 0.108 ... 0.065 A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot does not show any outliers. Does the sample evidence suggest that calcium concentrations have changed since 1990? Use the a=0.1 level of significance. 0.087 O
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Transcribed Image Text:Calcium is essential to tree growth. In 1990, the concentration of calcium in precipitation in Chautauqua, New York, mg was 0.11 milligram per liter A random sample of 8 precipitation dates in 2018 results in the following data: 0.126 0.183 0.120 0.234 0.313 Ho: P = 0.11 H₁: μ # 0.11 (Type integers or decimals. Do not round.) Find the test statistic. to = (Round to two decimal places as needed.) 0.108 ... 0.065 A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot does not show any outliers. Does the sample evidence suggest that calcium concentrations have changed since 1990? Use the a=0.1 level of significance. 0.087 O
A college entrance exam company determined that a score of 25 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean math score of 25.5 on the college entrance exam with a standard deviation of 3.8. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is, are they scoring above 25 on the mathematics portion of the exam? Complete parts a) through d) below. ... F. None of the requirements are satisfied. c) Use the P-value approach at the α = 0.10 level of significance to test the hypotheses in part (a). Identify the test statistic. to = = 1.61 (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.)
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Transcribed Image Text:A college entrance exam company determined that a score of 25 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean math score of 25.5 on the college entrance exam with a standard deviation of 3.8. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is, are they scoring above 25 on the mathematics portion of the exam? Complete parts a) through d) below. ... F. None of the requirements are satisfied. c) Use the P-value approach at the α = 0.10 level of significance to test the hypotheses in part (a). Identify the test statistic. to = = 1.61 (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.)
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