Exhibit 10-30 A quantitative analysis teacher wants to see if there is any difference in the abilities of students enrolled in statistics in the summer and in the fall. Examination scores from a random sample of students enrolled this fall and from a random sample of students enrolled in the summer were selected. You are given the following information. x O n 6 -2.34 -10.77 Fall -6 74 17.06 35 Refer to Exhibit 10-30. The point estimate for the difference between the means of the two populations is Summer 84.77 19.01 28
Exhibit 10-30 A quantitative analysis teacher wants to see if there is any difference in the abilities of students enrolled in statistics in the summer and in the fall. Examination scores from a random sample of students enrolled this fall and from a random sample of students enrolled in the summer were selected. You are given the following information. x O n 6 -2.34 -10.77 Fall -6 74 17.06 35 Refer to Exhibit 10-30. The point estimate for the difference between the means of the two populations is Summer 84.77 19.01 28
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:Exhibit 10-30
A quantitative analysis teacher wants to see if there is any difference in the abilities of students enrolled in statistics in
the summer and in the fall. Examination scores from a random sample of students enrolled this fall and from a random
sample of students enrolled in the summer were selected. You are given the following information.
x
O
n
6
-2.34
-10.77
Fall
-6
74
17.06
35
Refer to Exhibit 10-30. The point estimate for the difference between the means of the two populations is
Summer
84.77
19.01
28
Expert Solution
Step 1
The question is about hypo. testing of difference between means of two popl.
Given :
Sample mean score of students selected from Fall ( ) = 74
popl. std. deviation of score of students selected from Fall ( 1 ) = 17.06
Randomly selected no. of students from Fall ( n1 ) = 35
Sample mean score of students selected from summer ( ) = 84.77
popl. std. deviation of score of students selected from summer ( 2 ) = 19.01
Randomly selected no. of students from summer ( n2 ) = 28
To find :
Point estimate of diff. between the means of two popl.
Step by step
Solved in 2 steps
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