a3 - MATH 1131 3.0 - Fall 2011 Assignment 3 (Due Date:...

Info iconThis preview shows pages 1–2. 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
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: MATH 1131 3.0 - Fall 2011 Assignment 3 (Due Date: November 9, 2011) (Answer all questions) Question 1: According to Statistics Canada, 8.8% of Canadian families have five or more members. a. If we take a random sample of 10 families, what is the probability that at least 2 of them will be of size five or bigger? b. If we take a random sample of 400 families, what is the probability that more than 34 of them will be of size five or bigger? c. If we take a random sample of 1000 families, what is the probability that exactly 90 of them will be of size five or bigger? Question 2: The normal body temperature measured by placing the thermometer under the tongue is assumed to be normally distributed with a standard deviation of 0 . 7 o C . Body temperatures of 52 subjects were recorded and the average is 36 . 83 o C . a. Find a 98% confidence interval for the mean body temperature? b. Interpret the interval obtained in part (a) in the context of this question....
View Full Document

Page1 / 2

a3 - MATH 1131 3.0 - Fall 2011 Assignment 3 (Due Date:...

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