Homework Help is Here – Start Your Trial Now!
Math
Statistics
Suppose two teams of researchers recruited participants and measured their math ability on a scale from  1 to 70. The first team sampled 30 participants; they obtained a sample mean of 50 and a 95% CI of [40, 60]. The second team sampled 40 participants; they obtained a sample mean of 55 and a 95% CI of [50, 60]. Which team's point estimation of the population mean is more precise.  A. First team B. Second team C. Both are the same.

Suppose two teams of researchers recruited participants and measured their math ability on a scale from  1 to 70. The first team sampled 30 participants; they obtained a sample mean of 50 and a 95% CI of [40, 60]. The second team sampled 40 participants; they obtained a sample mean of 55 and a 95% CI of [50, 60]. Which team's point estimation of the population mean is more precise.  A. First team B. Second team C. Both are the same.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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
See similar textbooks
icon
Related questions
Question

Suppose two teams of researchers recruited participants and measured their math ability on a scale from  1 to 70. The first team sampled 30 participants; they obtained a sample mean of 50 and a 95% CI of [40, 60]. The second team sampled 40 participants; they obtained a sample mean of 55 and a 95% CI of [50, 60]. Which team's point estimation of the population mean is more precise. 

A.

First team

B.

Second team

C.

Both are the same.

Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS