Mathematics, 22.04.2020 01:51, anna8352
According to a "how to stop bullying" Web site, 15% of students report experiencing bullying one to three times within the most recent month. Let's assume the standard deviation is 4.5% of students. Joseph collects data from 186 students at a medium-sized school in Iowa and finds that only 11% reported this rate of bullying. What is his 95% confidence interval?
Answers: 3
, and a confidence level of 
, we have the following confidence interval of proportions.
.
, z is the value of Z that has a pvalue of 
, so 
.
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 15:00, katherineweightman
What is the rotational symmetry of a wheel
Answers: 1
Mathematics, 21.06.2019 22:30, CatelynBGray
Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%
Answers: 1
Mathematics, 21.06.2019 23:00, miahbaby2003p2af1b
Prove that 16^4-2^13-4^5 is divisible by 11.
Answers: 1
Do you know the correct answer?
According to a "how to stop bullying" Web site, 15% of students report experiencing bullying one to...
Questions in other subjects:
English, 28.05.2021 14:00
Mathematics, 28.05.2021 14:00
Business, 28.05.2021 14:00
English, 28.05.2021 14:00
Social Studies, 28.05.2021 14:00
Mathematics, 28.05.2021 14:00
