It is believed that 11% of all Americans are left-handed. A college needs to know how many left-handed desks to place in the big lecture halls being constructed on its campus. In a random sample of 200 students from that college, 30 were left-handed. Does this provide enough evidence to show that students at this college have a higher percentage of left-handers than the general American population

This provides enough evidence that students at this college have a higher percentage of left-handers than the general American population because in this sample of 200 students, 15% were right-handed, which is greater than the nationwide 11%. However, they should first sample more students to be sure.

Step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is