7. According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 24% of all complaints in 2007 were for identity theft. In that year, Alaska had 322 complaints of identity theft out of 1,435 consumer complaints. (a) Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft than 24%? Test at the 5% level. i. Identify the null and alternative hypotheses. ii. Determine whether or not to reject the null reject the null hypothesis. (b) Calculate a 90% confidence interval for the proportion of identity theft in Alaska.
7. According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 24% of all complaints in 2007 were for identity theft. In that year, Alaska had 322 complaints of identity theft out of 1,435 consumer complaints. (a) Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft than 24%? Test at the 5% level. i. Identify the null and alternative hypotheses. ii. Determine whether or not to reject the null reject the null hypothesis. (b) Calculate a 90% confidence interval for the proportion of identity theft in Alaska.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:7. According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft,
24% of all complaints in 2007 were for identity theft. In that year, Alaska had 322 complaints of identity
theft out of 1,435 consumer complaints.
(a) Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft
than 24%? Test at the 5% level.
i. Identify the null and alternative hypotheses.
ii. Determine whether or not to reject the null reject the null hypothesis.
(b) Calculate a 90% confidence interval for the proportion of identity theft in Alaska.
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