Answer:
0.3 to 2.3 min
Step-by-step explanation:
n1=n2=10
x1=48
x2=49
s1=4
s2=1
Determine the deegres of freedom.
t=2.037 (student's appendix)
We are 95% confident that average commuting time for rute A is between 0.3 and 2.3 min shorter than for rute B.
(1, 1), (4, -25)
<h3>Step-by-step explanation:</h3>You can evaluate the function to see.
f(-1) = -3^(-1-1)+2 = -3^(-2)+2 = -1/9 +2 ≠ 2
f(1) = -3^(1-1) +2 = -1 +2 = 1
f(0) = -3^(0-1) +2 = -1/3 +2 ≠ 0
f(4) = -3^(4 -1) +2 = -27 +2 = -25
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Or, you can graph the points and the curve.
