The sample data below represent the number of late and on time flights for three airlines.FlightLate1Airline2381 93 98On Time 219 207 302(a) Formulate the hypotheses for a test that will determine if the population proportion of late flights is the same for all threeairlines.P₂P3O Ho: Not all population proportions are equal.Ha: P₁ = P₂ = P3Ho: P₁ = P₂ = P3H: Not all population proportions are equal.O Ho: All population proportions are not equal.Ha: P₁ = P₂ = P3O Ho: P₁ = P₂ = P3H: All population proportions are not equal.(b) Conduct the hypothesis test with a 0.05 level of significance.Find the value of the test statistic. (Round your answer to three decimal places.)Find the p-value. (Round your answer to four decimal places.)p-value =Need Help? Read ItState your conclusion.Reject H. We cannot conclude that not all of the population proportions are equal.O Do not reject Ho. We conclude that not all of the population proportions are equal.O Reject H. We conclude that not all of the population proportions are equal.Do not reject Ho. We cannot conclude that not all of the population proportions are equal.(c) Compute the sample proportion of late flights for each airline.What is the overall proportion of late flights for the three airlines?p=Watch It

Answered: The sample data below represent the…

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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3. Can SAT scores predict college performance? Let x be a variable that represents SAT score of a computer science major, and let y be a variable that represents a student’s GPA upon graduation. A random sample of n =15 computer science majors provided their SAT scores and GPAs: x 1232 1070 1086 1287 1130 1048 1121 1095 1135 1208 1333 1160 1186 1243 1261 y 3.52 2.91 2.4 3.47 3.47 2.37 2.4 2.24 3.02 3.32 3.59 2.54 3.19 3.71 3.58 The scatter diagram for the SAT score and GPA is given below: (a) Find the sample correlation coefficient r. Truncate to two decimal places. What does the value tell you about the data? (b) Find the equation of the least squares line . Truncate to four decimal places. What does the slope mean? (c) Find the value of the coefficient of determination . Truncate to two decimal places. What does this number mean? (d) What is the predicted GPA if a computer science major got a…

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