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How would you conduct a survey to estimate the proportion of adults who go shopping five...

How would you conduct a survey to estimate the proportion of adults who go shopping five days in a week in Gaborone ,where Gaborone is a city

Math   Statistics-And-Probability   
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Answer #1

>> the very first thing is to decide the population. here Gaborone city resident

>> now the sample must be taken randomly from different places of the city

>> Then we need to define the level of significance and margin or error

>>, once margin of error is decided, then sample size, is computed using formula

Where z normal score value at half of level of significance and E is the margin of error

>>, once the sample is taken then proportion estimate, is taken as the fraction of adults who go shopping 5 days a week

>> confidence interval can be computed as well

95% confidence interval computed as

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