STAT201 Sampling Dist

STAT201 Sampling Dist - Click to edit Master subtitle style...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: Click to edit Master subtitle style 9/26/11 Sampling Distributions STAT201 9/26/11 Example 1. Sample Mean When its ovens are working properly, the time required to back fruit pies at Ellardo Bakeries is normally distributed with a mean of 45 minutes and a standard deviation of 5 minutes. Yesterday, a random sample of 16 pies had an average baking time of 50 minutes. a. if its ovens are working properly, how likely is it that a sample of 16 pies would have an average baking time of 50 minutes 9/26/11 Example 1 Parameters Population mean =45 minutes Population standard deviation =5 minutes Sample size n=16 pies Sample mean x-bar=50 Population size N is not available 9/26/11 Example 1 Solution Get new mean and standard deviation for sampling distribution Become a normal distribution question (chapter 6) z= (50-45)/1.25=4 = = 45 x 5 = =1.25 16 x n = 9/26/11 b. Yes, since the probability of a sample of size 16 having a mean of 50 or more is essentially 0. essentially 0....
View Full Document

Page1 / 13

STAT201 Sampling Dist - Click to edit Master subtitle style...

This preview shows document pages 1 - 6. Sign up to view the full document.

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