1) The results of a state mathematics test for random samples of students taught by two different
teachers at the same school are shown below. Can you conclude that that there is a difference
in the mean mathematics test scores for the students of the two teachers. Use a=0.10. Assume
the populations are normally distributed and the population variances are not equal.

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step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

9987

step-by-step explanation:

answer is  

a.

p = 78

step-by-step explanation: