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...


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


Jun 02, 2022
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