Consider the following data for two independent random samples taken from two normal populations.

sample 1: 10 7 13 7 9 8

sample 2: 8 7 8 4 6 9

a. compute the two sample means.

sample 1: answer

sample 2: answer

b. compute the two sample standard deviation (to 2 decimals).

sample 1: answer

sample 2: answer

c. what is the point estimate of the difference between the two population means?

answer

d. what is the 90% confidence interval estimate of the difference between the two population means (to 2 decimals - - use 9 degrees of freedom)?

( answer , answer )

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

you need to give us more information since we can't answer

it is a secret for it not to be compromised sorry

step-by-step explanation: