Consider this quote: "In a recent survey, 69 out of 100 consumers reported that they preferred plastic bags instead of paper bags for their groceries. If there is no difference in the proportions who prefer each type in the population, the chance of such extreme results in a sample of this size is about .03. Because .03 is less than .05, we can conclude that there is a statistically significant difference in preference." Give a numerical value for each of the following. (a) The p-value. (b) The level of significance, a. (c) The sample proportion. (d) The sample size. (e) The null value.
Consider this quote: "In a recent survey, 69 out of 100 consumers reported that they preferred plastic bags instead of paper bags for their groceries. If there is no difference in the proportions who prefer each type in the population, the chance of such extreme results in a sample of this size is about .03. Because .03 is less than .05, we can conclude that there is a statistically significant difference in preference." Give a numerical value for each of the following. (a) The p-value. (b) The level of significance, a. (c) The sample proportion. (d) The sample size. (e) The null value.
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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Transcribed Image Text:Consider this quote: "In a recent survey, 69 out of 100 consumers reported that they preferred plastic bags instead of paper bags for their groceries. If there is no difference in the proportions who
prefer each type in the population, the chance of such extreme results in a sample of this size is about .03. Because .03 is less than .05, we can conclude that there is a statistically significant
difference in preference." Give a numerical value for each of the following.
(a) The p-value.
(b) The level of significance, a.
(c) The sample proportion.
(d) The sample size.
(e) The null value.
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