Ch23 - Chapter 23 Inference About Means One-sample...

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

View Full Document Right Arrow Icon
Chapter 23 Inference About Means
Background image of page 1

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

View Full DocumentRight Arrow Icon
One-sample t-interval When the conditions are met, we are ready to find the confidence interval for the population mean, µ. The confidence interval is where the standard error of the sample mean is ( 29 ± - _ * 1 _ SE y t y n n s y = _ SE
Background image of page 2
How to find the critical value? The critical value depends on 2 things: the confidence level and the number of degrees of freedom, n-1 (the sample size minus 1). * 1 - n t
Background image of page 3

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

View Full DocumentRight Arrow Icon
Notice we have s and not h Since we will be dealing with values from a population, we would have to find the standard deviation of those values (back from Chapter 5). However, for the Final Exam, the value will be provided for you.
Background image of page 4
In 1998, as an advertising campaign, the Nabisco Company announced a “1000 Chips Challenge,” claiming that every 18-ounce bag of their Chips Ahoy cookies contained at least 1000 chocolate chips. The following are the numbers of chocolate
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 11

Ch23 - Chapter 23 Inference About Means One-sample...

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