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 127 of 340 technology crowd-funding projects were successfully launched in the past year and 343 of 860 film and video crowd-funding projects were successfully launched in the past year. Complete parts (a) through (c) below.

A) Zstat=

The critical value is/ are

B) P value of

C) Construct a 90% confidence interval estimate for difference between in the population proportion of successful technology crowd-funding projects and film and video crowd funding projects that are successful.