Mathematics
Mathematics, 15.04.2021 20:50, samy17

Select the correct answer. As part of a class project, Sarah and Geoffrey conducted a survey asking their peers whether they planned on taking a music class the next year.
of the 90 students they surveyed, 43 responded favorably. Sarah and Geoffrey calculated the margin of error for different confidence intervals.
Their work is shown.
Sarah
Geoffrey
95% confidence:
90% confidence
ME = 1.96
0.48(1 - 0.48)
90
ME = 1.65V
133
Which student incorrectly found the margin of error and why?
A. Sarah incorrectly found the margin of error because she used the wrong critical value.
B. Sarah incorrectly found the margin of error because she used the wrong sample proportion
C. Geoffrey incorrectly found the margin of error because he used the wrong sample size.
D. Geoffrey incorrectly found the margin of error because he used the wrong critical value.


Select the correct answer.

As part of a class project, Sarah and Geoffrey conducted a survey aski

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:30, emberjohnson26
Which ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15
Answers: 3
image
Mathematics, 21.06.2019 22:40, Savannahh8503
Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.
Answers: 3
image
Mathematics, 22.06.2019 02:00, lexhoangg
Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.
Answers: 3
image
Mathematics, 22.06.2019 04:30, kony345p
Write the ratio as a fraction in lowest terms 1 1/3 to 1 2/3
Answers: 2
Do you know the correct answer?
Select the correct answer. As part of a class project, Sarah and Geoffrey conducted a survey asking...

Questions in other subjects:

Konu
English, 15.04.2020 17:19
Konu
Mathematics, 15.04.2020 17:19
Konu
Mathematics, 15.04.2020 17:19