Hi, i ned some help on some qn about statistics. can u help me explain and do the qns? thanks :D
3) Probalility Qn
P(A) A and B mutually exculsive=0
P(B)
Find P(A and B)
4) A study was conducted to determine if listening to heavy metal music affects critial thinking. To test the claim 118 subjects were randomly assigned to two groups. Both groups were administered a basic math skills exam. The first group took the exam while heavy metal music was piped into the exam room while the second group took the exam in silent room
The mean score for the first group was 83 and the mean exam score for the second group was 96. The researchers consluded that heavy metal music negatively affects crtical thinking.
Identify a) the research objective
b) the sample
c) the descriptive statistics
d) the conclusion made in the study
7a) A local politican running for re-election claims that the mean prison time for car thieves is less than the required 6 years
A sample of 80 convicted car thieves was randomly selected and the mean length of prison was found to be 5 years and 6 month with a standard deviation of 1 year and 3 months. At a=0.05 test the politician claims
b)Suppos you are using a=0.01 to test the claim that u=1050 using a P value
You are given the sample statistics n=35 x=1020 and o=82 Find the P- value
Originally posted by RaTtY8l:Hi, i ned some help on some qn about statistics. can u help me explain and do the qns? thanks :D
3) Probalility Qn
P(A) A and B mutually exculsive=0
P(B)
Find P(A and B)4) A study was conducted to determine if listening to heavy metal music affects critial thinking. To test the claim 118 subjects were randomly assigned to two groups. Both groups were administered a basic math skills exam. The first group took the exam while heavy metal music was piped into the exam room while the second group took the exam in silent room
The mean score for the first group was 83 and the mean exam score for the second group was 96. The researchers consluded that heavy metal music negatively affects crtical thinking.
Identify a) the research objective
b) the sample
c) the descriptive statistics
d) the conclusion made in the study7a) A local politican running for re-election claims that the mean prison time for car thieves is less than the required 6 years
A sample of 80 convicted car thieves was randomly selected and the mean length of prison was found to be 5 years and 6 month with a standard deviation of 1 year and 3 months. At a=0.05 test the politician claims
b)Suppos you are using a=0.01 to test the claim that u=1050 using a P value
You are given the sample statistics n=35 x=1020 and o=82 Find the P- value
Question 3 doesn't seem to be completed yet. P (A) = ?? and P (B) = ??
For question 4, I bolded the answers above, in the exact order.
Question 7 stops at 'politician claims'. Where is the rest of the question?