In order to determine whether or not there is a significant difference between the hourly wages of two companies, the following data have been accumulated. Company A Company B
Sample size 48 64
Sample mean $16.75 $16.20
Population standard deviation $1.20 $0.80

To perform a test of hypothesis to see whether or not there is a significant difference between the hourly wages of companies A and B, the problem should be formulated as a one-tailed test (lower-tail). What is the 95% confidence interval estimate of the difference between the population means for the two populations?

78.59 is the mean

step-by-step explanation:

4.08%

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice