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Using this data, make assumptions (large sample)

Using this data, make assumptions (large sample)

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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Using this data, make assumptions (large sample)
Comparing Two Population Proportions Evidence Size #Successes 20 Proportion 0.417 Hypothesis Testing Hypothesized Difference Zero Pooled p-hat 0.5000 Test Statistic -1.6330 Z Null Hypothesis Ho: P₁-P₂ = 0 Ho: P₁-P₂ >= 0 Ho: P₁-P₂ <= 0 Hypothesized Difference Nonzero Sample 1 Sample 2 48 48 28 0.583 Test Statistic -2.6499 Null Hypothesis Ho: P₁ P₂ = 0.1 Ho: P₁ P2 = 0.1 Ho: P₁ P₂ <= 0.1 p-value 0.1025 0.0512 0.9488 Z p-value 0.0081 0.0040 0.9960 n X p-hat At an a of 5% су 1.96 -1.64 1.64 At an a of 5% Reject Reject Confidence Interval 1 – α 90% Assumption Large Samples Confidence Interval -0.1667 ± 0.1655 -0.3322 = [ 0.0000, -0.0011 ]
Transcribed Image Text:Comparing Two Population Proportions Evidence Size #Successes 20 Proportion 0.417 Hypothesis Testing Hypothesized Difference Zero Pooled p-hat 0.5000 Test Statistic -1.6330 Z Null Hypothesis Ho: P₁-P₂ = 0 Ho: P₁-P₂ >= 0 Ho: P₁-P₂ <= 0 Hypothesized Difference Nonzero Sample 1 Sample 2 48 48 28 0.583 Test Statistic -2.6499 Null Hypothesis Ho: P₁ P₂ = 0.1 Ho: P₁ P2 = 0.1 Ho: P₁ P₂ <= 0.1 p-value 0.1025 0.0512 0.9488 Z p-value 0.0081 0.0040 0.9960 n X p-hat At an a of 5% су 1.96 -1.64 1.64 At an a of 5% Reject Reject Confidence Interval 1 – α 90% Assumption Large Samples Confidence Interval -0.1667 ± 0.1655 -0.3322 = [ 0.0000, -0.0011 ]
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