A researcher wishes to estimate the proportion of adult males who are less than 5 feet 5 inches tall. She wants to be 90% confident that her estimate is within 4% of the true proportion (Round to the nearest whole number): (a) How large a sample should be taken if in a sample of 300 males, 30 were less than 5 feet 5 inches tall? (a) . (b) If no estimate of the sample proportion is available, how large should the sample be? (b) . Estimate population proportion: New York Times poll found that 329 out of 763 adults said they would travel to outer space in their lifetime, given the chance. Estimate the true proportion of adults who would like to travel to outer space with 88% confidence (Round to two decimal places).

A researcher wishes to estimate the proportion of adult males who are less than 5 feet 5 inches tall. She wants to be 90% confident that her estimate is within 4% of the true proportion (Round to the nearest whole number): (a) How large a sample should be taken if in a sample of 300 males, 30 were less than 5 feet 5 inches tall? (a) . (b) If no estimate of the sample proportion is available, how large should the sample be? (b) . Estimate population proportion: New York Times poll found that 329 out of 763 adults said they would travel to outer space in their lifetime, given the chance. Estimate the true proportion of adults who would like to travel to outer space with 88% confidence (Round to two decimal places).

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

A researcher wishes to estimate the proportion of adult males who are less than
5 feet 5 inches tall. She wants to be 90% confident that her estimate is within 4% of the
true proportion (Round to the nearest whole number):
(a) How large a sample should be taken if in a sample of 300 males, 30 were less than 5
feet 5 inches tall?
(a)
(b) If no estimate of the sample proportion is available, how large should the sample be?
(b)
Estimate population proportion: New York Times poll found that 329 out of 763
adults said they would travel to outer space in their lifetime, given the chance. Estimate
the true proportion of adults who would like to travel to outer space with 88% confidence
(Round to two decimal places).

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