# Example Test 2 problems GG output-1-1

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How will questions work if we don't have a computer with Geogebra? A potato chip manufacturer has a machine that puts chips into a bag according to a normal distribution with a mean of 16.5 ounces and a standard deviation of 0.2 ounces. i. To compute normal probabilities and values, which GeoGebra application do you need? Circle the correct option below. ii. What GeoGebra inputs would you use to compute the probability that a randomly selected bag will contain less than 16.25 ounces? Select the appropriate choice and fill in the boxes with the correct values. Circle the box where the answer will be. A) B) C)
iii. What GeoGebra inputs would you use to compute the value that separates the 15% of bags with the most chips from the rest of the population? Select the appropriate choice and fill in the boxes with the correct values. Circle the box where the answer will be. A) B) C) iv. The GeoGebra output given below was computed using the mean and standard deviation of weights per bag of chips. Which of the following is a correct interpretation? Circle the correct answer. A) 6.88% of bags have more than 16.8 ounces of chips. B) 16.8% of bags have more than 6.68 ounces of chips. C) 6.68% of bags have less than 16.8 ounces of chips. D) 16.8% of bags have less than 6.68 ounces of chips.
In a survey of 1,033 randomly selected adults in the United States, 83 identified themselves as vegetarian or vegan. We are interested in the proportion of all U.S. adults who are vegetarian or vegan. Create a 95% confidence interval. i. Which option should be selected in GeoGebra to do this calculation? Circle the correct answer. ii. Fill in the boxes with the appropriate values to compute the confidence interval. iii. Write an appropriate interpretation for the confidence interval using the results given below.