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
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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
Introduction:
The 100 (1 – α) % confidence interval for the population proportion, π is: (p – (zα/2) √(π (1 – π)/n), p + (zα/2) √(π (1 – π)/n)).
Here, n is the sample size, p is the sample proportion, and zα/2 is the critical value of the z-distribution, above which,...
Math
Statistics
Hypothesis Testing
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