Use the given data to find the minimum sample size required to estimate a population proportion or percentage. margin of error: nine percentage points; confidence level 95%; from a prior study, p with caret is estimated by the decimal equivalent of 38%.

112

Step-by-step explanation:

Given : Significance level :

Critical value:

Margin of error : E = 9%=0.09

The estimated proportion of caret : p =0.38

Now, the formula to find the sample size :-

i.e.

Hence, the required minimum sample size = 112

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

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