## Question

###### Homework: Homework9 - Sections 8.1-8.3 Save Score: 0 of 4 pts 16 of 17 (13 complete)...

Homework: Homework9 - Sections 8.1-8.3 Save Score: 0 of 4 pts 16 of 17 (13 complete) HW Score: 54.5%, 21.8 of 40 pts 8.3.29-T Question Help In a survey of 3,775 adults concerning complaints about restaurants, 1,477 complained about dirty or il-equipped bathrooms and 1,163 complained about loud or distracting diners at other tables. Complete parts (a) through (c) below a. Construct a 95% confidence interval estimate of the population proportion of adults who complained about dirty or ill-equipped bathrooms (Round to four decimal places as needed.)

## Answers

3775 Aw) n=3775 , X131477, X2 = 1163 Post = 1477 = 0.3913 For 95% CI, Z4/2 = 1.96 from Z-table 95%CI= Pit 2xPCI-P) = 0.3913–196x79-3913(1-0-3913) = (0.3757,0.4069) 3775 i 0.37575150.4069

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