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According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft ('Consumer fraud and, 2008). Assume a state had 362 complaints of identity theft out of 1470 consumer complaints . Calculate a 93% confidence interval for the proportion of all complaints that are complaints of identity theft in that state. P: Parameter What is the correct parameter symbol for this problem? P What is the wording of the parameter in the context of this problem?

According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft ('Consumer fraud and, 2008). Assume a state had 362 complaints of identity theft out of 1470 consumer complaints . Calculate a 93% confidence interval for the proportion of all complaints that are complaints of identity theft in that state. P: Parameter What is the correct parameter symbol for this problem? P What is the wording of the parameter in the context of this problem?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft ('Consumer fraud and, 2008). Assume a state had 362 complaints of identity theft out of 1470 consumer complaints . Calculate a 93% confidence interval for the proportion of all complaints that are complaints of identity theft in that state. P: Parameter What is the correct parameter symbol for this problem? p V What is the wording of the parameter in the context of this problem? The percentage of all consumer complaints in that state that are for identity theft A: Assumptions ● Since qualitative Vinformation was collected from each object, what conditions do we need to check? Check all that apply. Onp≥ 10 ✔N > 20n On 30 or normal population. On(1-p) ≥ 10 n(1-p) 10 o is unknown. ✓n(p) > 10 o is known. Check those assumptions: 1. np= 362 2. n(1-P)= 3. N= 1000000 which is 2 V 10 which is 2 V which is > V 10 If no N is given in the problem, use 1000000 N: Name the procedure The conditions are met to use a 1-Proportion Z-Interval V
Transcribed Image Text:According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft ('Consumer fraud and, 2008). Assume a state had 362 complaints of identity theft out of 1470 consumer complaints . Calculate a 93% confidence interval for the proportion of all complaints that are complaints of identity theft in that state. P: Parameter What is the correct parameter symbol for this problem? p V What is the wording of the parameter in the context of this problem? The percentage of all consumer complaints in that state that are for identity theft A: Assumptions ● Since qualitative Vinformation was collected from each object, what conditions do we need to check? Check all that apply. Onp≥ 10 ✔N > 20n On 30 or normal population. On(1-p) ≥ 10 n(1-p) 10 o is unknown. ✓n(p) > 10 o is known. Check those assumptions: 1. np= 362 2. n(1-P)= 3. N= 1000000 which is 2 V 10 which is 2 V which is > V 10 If no N is given in the problem, use 1000000 N: Name the procedure The conditions are met to use a 1-Proportion Z-Interval V
N: Name the procedure The conditions are met to use a [1-Proportion Z-Interval V I: Interval and point estimate The symbol and value of the point estimate on this problem are as follows: p 362 1470 Leave answer as a fraction. The interval estimate for p Vis ( C: Conclusion Round endpoints to 3 decimal places. • We are 93 % confident that the The percentage of all consumer complaints in that state that are for identity theft between % and % is
Transcribed Image Text:N: Name the procedure The conditions are met to use a [1-Proportion Z-Interval V I: Interval and point estimate The symbol and value of the point estimate on this problem are as follows: p 362 1470 Leave answer as a fraction. The interval estimate for p Vis ( C: Conclusion Round endpoints to 3 decimal places. • We are 93 % confident that the The percentage of all consumer complaints in that state that are for identity theft between % and % is
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