Question Completion Status: In a survey of 7,786 randomly selected adults living in Germany, 5,840 said they exercised for at least 30 minutes three or more times per week. Suppose an exercise scientist wants to estimate the proportion of American adults who exercise for 30 minutes three or more times per week. He wants to construct a 90% confidence interval with a margin of error of 1%. Note that Americans are typically thought to not be as active as individuals in other countries, and thus the estimate from Germany is likely not a good estimate for Americans What sample size does he need? a.6,766 people b.13,532 people O c.27,060 people O d.41 people QUESTION 15 Use the following to answer the questions below. Select the answer closest to the specified areas for a normal density. Round to three decimal places. The area to the left of 32 on a N(45, 8) distribution. a.0.948 b.0.052 c.0.896 do 104 Click Save and Submit to save and submit. Click Save All Answers to save all answers, Save All Answer's