The following data set contains the marks of 30 students in two courses.Assume that the variances for the classes are 9 and 16 respectively.1. Find the confidence Intervals for each class?Where a = 0.05; 0.1.2. Discuss your results?1StudentsXY1901202.99130380105475110801156.8099881058991309.90125109011011801081280991385102148010115881211690125179012518921019801182070100218010522801102388120248511025901252680L18118277599288010229851013080121

Introduction: Confidence interval is a range of values it contains the true population parameter…

The following data set contains the marks of 30 students in two courses. Assume that the variances for the classes are 9 and 16 respectively. 1. Find the confidence Intervals for each class? Where a = 0.05; 0.1. 2. Discuss your results? Students X Y 90 120 2. 99 130 80 105 75 110 80 115 6. 80 99 88 105 8. 99 130 90 125 10 90 110 11 80 108 12 80 99 13 85 102 14 80 101 15 88 121 16 90 125 17 90 125 18 92 110 80 118 19 20 70 100 21 80 105 22 80 110 23 88 120 24 85 110 25 90 125 80 118 26 27 75 99 28 80 102 29 85 101 30 80 121

The following data set contains the marks of 30 students in two courses. Assume that the variances for the classes are 9 and 16 respectively. 1. Find the confidence Intervals for each class? Where a = 0.05; 0.1. 2. Discuss your results? Students X Y 90 120 2. 99 130 80 105 75 110 80 115 6. 80 99 88 105 8. 99 130 90 125 10 90 110 11 80 108 12 80 99 13 85 102 14 80 101 15 88 121 16 90 125 17 90 125 18 92 110 80 118 19 20 70 100 21 80 105 22 80 110 23 88 120 24 85 110 25 90 125 80 118 26 27 75 99 28 80 102 29 85 101 30 80 121

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A school principal claims that the number of students who are tardy to school does not vary from month to month. A survey over the school year produced the following results. Using a 0.01 level of significance, test a teacher's claim that the number of tardy students does vary by the month. Number Aug. Oct. Sept. 18 13 19 Tardy Students Nov. Dec. Jan. 14 8 Feb. Mar. Apr. 6 13 11 15 May 16 Copy Data Step 2 of 4: Calculate the expected value for the number of tardies in October. Enter your answer as a fraction or a decimal rounded to three decimal places.
A school principal claims that the number of students who are tardy to school does not vary from month to month. A survey over the school year produced the following results. Using a 0.01 level of significance, test a teacher's claim that the number of tardy students does vary by the month. Number Aug. Sept. Oct. 18 13 19 Tardy Students Nov. 14 Dec. Jan. Feb. Mar. Apr. May 8 6 13 11 15 16 Copy Data Step 3 of 4: Compute the value of the test statistic. Round any intermediate calculations to at least six decimal places, and round your final answer to three decimal places.
The following sample observations were randomly selected: X Y 5 4 10 7 3 7 4 6 6 5 What is the coefficient of correlation? Select one: a. 0.185 b. 0.001 c. 0.034 d. 0.089
Two companies produce widgets of varying quality. An important measure of quality is the number of days the widgets can go before they need to be replaced. Do the following data provide evidence that the quality of widgets from the two companies differ? Round the p-value to three decimal places. Do not assume equal variances. Widget Life in Days from Company 1 Widget Life in Days from Company 2 12.0 52.2 14.0 45.8 48.4 44.6 47.0 57.5 50.4 44.2 57.4 50.8 30.8 43.0 30.0
Please do 3 and 4.