Two random samples of sizesn= 10 and n = 12 from chemistry course and physics course respectively, provided the following information about the final exam scores: Chemistry; Xe = 60, Physics; X, = 72, At a = 5%, can you conclude that 723D Se = 6.5 %3D Sp = 4.0 a) the population variances are the same? b) the population means are the same? c) construct a 95% confidence interval for the difference in the population means.
Two random samples of sizesn= 10 and n = 12 from chemistry course and physics course respectively, provided the following information about the final exam scores: Chemistry; Xe = 60, Physics; X, = 72, At a = 5%, can you conclude that 723D Se = 6.5 %3D Sp = 4.0 a) the population variances are the same? b) the population means are the same? c) construct a 95% confidence interval for the difference in the population means.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Transcribed Image Text:Two random samples of sizes n = 10 and n = 12 from chemistry course and physics course
respectively, provided the following information about the final exam scores: Chemistry;
Xe = 60,
Physics; X, = 72,
At a = 5%, can you conclude that
%3D
Se = 6.5
Sp = 4.0
a) the population variances are the same?
b) the population means are the same?
c) construct a 95% confidence interval for the difference in the population means.
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