428253288&questionld; 6&flushed; false&cid-4473921;&centerwin; Secure https://ww

Question

428253288&questionld; 6&flushed; false&cid-4473921;&centerwin; Secure https://www.mat Student/PlayerHomework.aspx?homeworkld yes STA 2023 SUMMER 2017 TR 8:00 David Bermudez & 6/8/17 12:26 AM Save Homework: Sec. 6.3 Score: 0 of 1 pt HW Score: 61.54%, 8 of 13 pts 12 of 13 (10 complete) v 6.3.23-T IE Question Help The table shows the results of a survey in which separate samples of 400 adults each from the East, South, Midwest, and West were asked if ad Traffic Congestion traffic congestion is a serious problem in their community. Complete parts (a) and (b Adults who say that tratti congostion (a) Construct a 95% confidence interval for the proportion of adults from the East who say traffic congestion is a serious problem. The 95% confidence interval for the proportion of adults from the East who say traffic congestion is a serious problem is (L.LD (Round to three decimal places as needed.) III VI VI a. (LI) More Enter your answer in the edit fields and then click Check Answer. part Clear All Check Answer remaining 12:26 Guest

Explanation / Answer

p^ =0.35

z= 1.96 , n = 400

hence 95 % confidence interval is

(0.35 - 1.96*sqrt(0.35*0.65/400)), (0.35 + 1.96*sqrt(0.35*0.65/400))

=(0.303256, 0.396743)

Related Questions

Navigate

• Browse (All)
• Browse 4
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.