s D11 want to estimate the proportion of children in oregon that are tuluedin mi

Question

s D11 want to estimate the proportion of children in oregon that are tuluedin middle school confidence interval want my margin of error to be ovoa and since don't know what the true proportion w iwaluse worw case scenario of 0.5 How large should my sample size be? show all work. so Researchers want to know children from different economic classes have differences when it comesto eatinkation. Children in the age range between and 11 were given te following choices They could receive cookies immediately but if they waited 15 minutes they could get eight cookies isthis study an experiment or observational study?

Explanation / Answer

(9)Given 1-0.99=0.01, Z(0.005) = 2.58 (from standard normal table)

So n=(Z/E)^2*p*(1-p)

=(2.58/0.03)^2*0.5*0.5

=1849

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experiment study

An experimental study is a type of evaluation that seeks to determine whether a program or intervention had the intended causal effect on program participants.

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