which 70 70 confident with a margin of error of > 70? 2) (3 points) During routine screening, a doctor notices that 22% of her adult patients show higher than normal levels of glucose in their blood - a possible warning sign for diabetes. Hearing this, some medical researchers decide to conduct a large-scale study, hoping to estimate the proportion to within 4% with 98% confidence. How many randomly selected adults must they test? 3) (1 point each) Write the null and alternative hypotheses you would use to test each situation