7. (Sec. 7.2) In a survey of 2004 American adults, 501 of them said that they believed in astrology(a) Calculate and interpret a confidence interval at the 95% confidence level for the proportion of alladult American adults who believe in astrology(b) Calculate and interpret a 95% lower confidence bound for the proportion of all adult Americanadults who believe in astrology

Question
Asked Nov 5, 2019
7. (Sec. 7.2) In a survey of 2004 American adults, 501 of them said that they believed in astrology
(a) Calculate and interpret a confidence interval at the 95% confidence level for the proportion of all
adult American adults who believe in astrology
(b) Calculate and interpret a 95% lower confidence bound for the proportion of all adult American
adults who believe in astrology
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7. (Sec. 7.2) In a survey of 2004 American adults, 501 of them said that they believed in astrology (a) Calculate and interpret a confidence interval at the 95% confidence level for the proportion of all adult American adults who believe in astrology (b) Calculate and interpret a 95% lower confidence bound for the proportion of all adult American adults who believe in astrology

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Step 1

Introduction:

The 100 (1 – α) % confidence interval for the population proportion, π is: (p – (/2­) (π (1 – π)/n), p + (/2­) (π (1 – π)/n)).

Here, n is the sample size, p is the sample proportion, and /2 is the critical value of the z-distribution, above which,...

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