HW6 Due in 6 hours, 30 minutes. Due Thu 02/22/2018 11:59 pm Show Intro/Instructi

Question

HW6 Due in 6 hours, 30 minutes. Due Thu 02/22/2018 11:59 pm Show Intro/Instructions Questions In a recent poll, 480 people were asked if they liked dogs, and 59% said they did. Find the margin of error of this poll, at the 95% confidence level. Q1 [10/10] Q2 [10/10] Q 3 [10/10] Q 4 [10110] Q 5 [10/10] Q 6 [10110] Q7 [10/10] Q 8 [10/10] Q9 [10/10] Q 10 [10/10] Q 11 [10/10] Q 12 [10/10] Q13 [10/10] Q 14 [10/10] Q 15 [10/10] Q 16 (0110) Q 17 (0110) Q 18 [10/10 Q 19 (0/ 10) Q 20 [10/10 Q21 [10/10] Q 22 [10/10 Q23 [10/10] Q 24 [10/10] Q 25 (0110) As in the reading, in your calculations: -Use z 1.645 for a 90% confidence interval -Use z = 2 for a 95% confidence interval -Use z 2.576 for a 99% confidence interval. Give your answer rounded to three decimal places. Points possible: 10 This is attempt 1 of 5 Post this question to forum Submit Grade: 210/250 Print Version

Explanation / Answer

for p= 0.59 ; n=480

here std error =(p(1-p)/n)1/2 =0.0224

for 95% CI ; critical z =1.96

therefore margin of error =z*std error =1.96*0.0224 =0.044

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