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Student 12 3 4 5 6 7 8 Score 66 59 70 83 82 73 85 74 Find the mean Ju and variance S2 of the population.

Student 12 3 4 5 6 7 8 Score 66 59 70 83 82 73 85 74 Find the mean Ju and variance S2 of the population.

MATLAB: An Introduction with Applications
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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Show the necessary solutions in(b) and (c).

Consider a population of 8 students. Suppose we know the test scores of the students to be (b) Student 1 2 3 4 5 6 7 8 Score 66 59 70 83 82 73 85 74 Find the mean yu and variance S2 of the population. Let stratum A consist of students 1 4, and stratum B consist of students 5-8. How many stratified random samples of size 5 are possible in which 2 students are selected from stratum A and 3 students are selected from stratum B? List the possible stratified random samples. Find ystr for each possible stratified random sample. Find V(ystr). Compute a 95% CI for at using a stratified random sample of your choice.
Transcribed Image Text:Consider a population of 8 students. Suppose we know the test scores of the students to be (b) Student 1 2 3 4 5 6 7 8 Score 66 59 70 83 82 73 85 74 Find the mean yu and variance S2 of the population. Let stratum A consist of students 1 4, and stratum B consist of students 5-8. How many stratified random samples of size 5 are possible in which 2 students are selected from stratum A and 3 students are selected from stratum B? List the possible stratified random samples. Find ystr for each possible stratified random sample. Find V(ystr). Compute a 95% CI for at using a stratified random sample of your choice.
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