In a survey of adults aged 57 through 85​ years, it was found that ​% of them used at least one prescription medication. Complete parts​ (a) through​ (c) below. a. How many of the subjects used at least one prescription​ medication?
2750 ​(Round to the nearest integer as​ needed.)
b. Construct a​ 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication.

answer

see attachment

explanation

the given function is

this function has y-intercept at

-4 and a slope of 2.

note that, the graph has a positive slope.

the graph that represents this function is the straight line that moves upward from left to right.

the graph touches the y-axis at -4.

the correct choice is the graph shown in the attachment.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it