The Wisconsin Dairy Association is interested in estimating the mean weekly consumption of milk for adults over the age of 18 in that state. To do this, they have selected a random sample of 50 people from the designated population and found a sample standard deviation of 9.7 ounces. Given this information, if the leaders wish to estimate the mean milk consumption with 90 percent confidence, what is the approximate margin of error in the estimate? Group of answer choices 2.30 ounces 0.71 ounces 2.76 ounces 2.26 ounces 3.68 ounces

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