Just answer part e the rest are correct https www.mathxl.com Math 112 Th 1.3 Hom
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Just answer part e the rest are correct https www.mathxl.com Math 112 Th 1.3 Homework: Section 7.5 Homework 021 of 1 pt 4 of 12 (1 oompletel HW Score: 58.74%,706 of 12 pts 7.5.66 In a certain country 58% ofrespondents to a pol in Apr 2012 reported that they strongy gay mamage, but in only sid he same thing complete pana la avored Assume again that the sampling ample 1. nt isthe of sample 1.x2 isthe number of successesin sample 2 and na isthe size sample 2. Let sample 1De e proporton is number of sucowves 1160 Confidence Level: 95 d. Check that the conditions for using the two proportion confidence intervalhoid. The Random and Independent condison holds through random samples and independent observations. The Large Samples conditon holds. be assumed to hold The Big Populations condition can reasonably The Independent Samples condioon holds. e. Find a confidenceinterval for the dinerence in proportions supporting gay mamage 2012 mins 2004, and The 95% confidence interval is OD (Round to three decimal places as needed Enter your answer inthe edi felds and then clok Check Ans 1Explanation / Answer
By using TI-84 we can solve part e
For finding confidence interval for difference in proportion we have to use z interval for proportion.
Path in TI-84 is
Click STAT ------> TESTS -------> 2-PropZTest -------> Enter values ------>
x1: 1160
n1: 2000
x2: 740
n2: 2000
C-Level: 0.95
Calculate
We get confidence interval ( 0.180 , 0.240)
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