SOLUTION: please help me im stuck and my time is running out i only have 55 minutes left to answers 1. People were polled on how many books they read the previous year. How many subjec

Question 747833: please help me im stuck and my time is running out i only have 55 minutes left to answers

1. People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book with 90% confidence? Initial survey indicates that Standard Deviation= 14.7
Therefore a 90% confidence level requires ____ subject?
2. Find the margin of errror for c, s, & n
c=0.50 s=3.9 n-18
Therefore the margin of error is _____
3. the GPA for 12 randomly selected college stdents are shown below
2.1
3.3
2.5
1.9
0.7
4.0
2.4
1.4
3.7
0.2
2.1
3.4
a. Find the sample mean
b. Find the sample standard deviation
c. construct a 95% confidence interval for the population mean u.
A 95% confidence interval for the population mean is ___,____.

Answer by lynnlo(4176) (Show Source): You can put this solution on YOUR website!

RELATED QUESTIONS
my math teacher is literally horrible at teaching and every year 75% of his class fails... (answered by rodriguezh2)

i have a test on fractions and i am stuck on my 15th question could you please help me... (answered by josmiceli,solver91311)

hi can u please help me with this question...i have had a go at it and im not sure if i... (answered by venugopalramana)

Hi, my name is michelle. im working on a midterm review that i have tomorrow at 12. im... (answered by ad_alta)

I am having a lot of problems trying to figure out these answers and I can't understand... (answered by solver91311)

I have a story question that is really bugging me and my family. If you can help it would (answered by stanbon,ankor@dixie-net.com)

Im having trouble with some word problems i have many for my homework i understand the... (answered by stanbon,lwsshak3)

please help I'm stuck!!! My homework question is... A small fair charges $1.50 for... (answered by ankor@dixie-net.com)

Problem: One day I was at school,the electricity went out at home. when I left for swim... (answered by MathTherapy)