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In a survey of 3,784 adults concerning complaints about​ restaurants, 1,532 complained about dirty or​ ill-equipped...

In a survey of 3,784 adults concerning complaints about​ restaurants, 1,532 complained about dirty or​ ill-equipped bathrooms and 1,183 complained about loud or distracting diners at other tables.

a) Construct a 90​% confidence interval estimate of the population proportion of adults who complained about dirty or​ ill-equipped bathrooms.

b) Construct a 90​% confidence interval estimate of the population proportion of adults who complained about loud or distracting diners at other tables.

Math   Statistics-And-Probability   
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Answer #1

We know that the 90% confidence interval for population proportion is given by:

a)

Confidence interval estimate of the population proportion of adults who complained about dirty or​ ill-equipped bathrooms:

b)

Confidence interval estimate of the population proportion of adults who complained about loud or distracting diners at other tables:

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