Two groups of students are given a problem-solving test, and the results are compared. Mathematics Majors Computer Science Majors XM = 23.1 Xcs = 21.7 SM = 2.1 SCM = 1.7 NM = 28 ncs = 35 a. Find the 90% confidence interval of the true difference in means. b. Interpret the meaning of the interval you calculated in part a. Additionally, state whether the value zero is captured in your interval or not and what this means.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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1. Two groups of students are given a problem-solving test, and the results are compared.
Mathematics Majors
Computer Science Majors
Хм
= 23.1
Xcs = 21.7
Sм — 2.1
SCм 3 1.7
= 28
ncs = 35
а.
Find the 90% confidence interval of the true difference in means.
b. Interpret the meaning of the interval you calculated in part a. Additionally, state whether the
value zero is captured in your interval or not and what this means.
Transcribed Image Text:1. Two groups of students are given a problem-solving test, and the results are compared. Mathematics Majors Computer Science Majors Хм = 23.1 Xcs = 21.7 Sм — 2.1 SCм 3 1.7 = 28 ncs = 35 а. Find the 90% confidence interval of the true difference in means. b. Interpret the meaning of the interval you calculated in part a. Additionally, state whether the value zero is captured in your interval or not and what this means.
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