Question

Asked Oct 27, 2019

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skipping lunch- A nutritionist wishes to determine, within 3%, the true proportion of adults who do not eat any lunch. if he wishes to be 95% confident that his estimate contains the population proportion, how large a sample will be neccesary? A previous study found that 15% of the 125 people surveyed said they did not eat lunch.

Step 1

It is given that margin of error (*E*) is 0.03 and the confidence level is 95%.

Step 2

Here,

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