Homework%20#12 - Homework #12 7.25, 7.27, 7.28, 7.30, 7.34...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Homework #12 7.25,  7.27,  7.28,  7.30,  7.34 There may be more here than necessary to answer on homework, as this is work to  illustrate process. 7.25  Females’ ideal number of children: 2002 GSS n=497 median 2 xbar = 3.02 s = 1.81 a.  point estimate of population equals 3.02  b.   se  of sample mean;   se  =  s / sro n  = 1.81 / sro 497 = 1.81 / 22.293496  =  0.0811895 c.  We are confident that if you took all possible samples, size 497, 95% would have means  between 2.87 and 3.21.  We are 95% confident that the true population mean falls between 2.87  and 3.21.  We suspect that we would be wrong only 5% of the time, or a 5% error rate given this  sample. d.  It is Very Unlikely that the population mean is equal to 2.    7.27  Using t-table: a. 95% CI for mean, n=5  t   (df = 4, .05)  = 2.776 b.  95% CI for mean, n = 15
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2008 for the course STAT 2610 taught by Professor Syvantek during the Spring '08 term at Auburn University.

Page1 / 5

Homework%20#12 - Homework #12 7.25, 7.27, 7.28, 7.30, 7.34...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online