A fast food restaurant executive wishes to know how many fast
food meals adults eat each week. They want to construct a 90%
confidence interval with an error of no more than 0.06 meals. A
consultant has informed them that a previous study found the mean
to be 5.7 fast food meals per week and found the standard deviation
to be 1.1.
What is the minimum sample size required to create the specified
confidence interval?
Summary :
The minimum sample size required to create the specified confidence interval is 910 sample.
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