Answered: One of the most impressive, innovative…

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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Question

One of the most impressive, innovative advances in online fundraising over the past decade is the rise of crowd-funding websites. While features differ from site to site, crowd-funding sites are websites that allow you to set up an online fundraising campaign based around a fundraising page, and accept money directly from that page using the website's own credit card processor. A certain crowd-funding website reported that 131 of 357 technology crowd-funding projects were successfully launched in the past year and 345 of 872 film and video crowd-funding projects were successfully launched in the past year.

a. Is there evidence of a significant difference in the proportion of technology crowd-funding projects and film and video crowd-funding projects that were successful? (Use

α = 0.01.)

a) State the null and alternative hypotheses, where π1 is the population proportion of successful technology crowd-funding projects and π2 is the population proportion of successful film and video crowd-funding projects.

b) Determine the value of the test statistic

c) What are the critical values?

d) Determine the p-value and interpret its meaning

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