Answer:
Test value = 3.49
Step-by-step explanation:
We are given the following in the question:
Alpha, α = 0.05
First, we design the null and the alternate hypothesis
We use F-test to determine the difference in variation between the two samples.
Formula:
Putting all the values, we have
Now, 
Comparison:
We reject the null hypothesis and accept the alternate hypothesis.
Thus, there is variation in advertising cost of salon and the advertising cost of nails.
The chance is 3/5 that the light will be green.
Added together the total seconds for the traffic light to complete the cycle is 120 (38+72 (1 min and 12 sec) +10.
And the green light proportion is: 72/120
We simplify by dividing by 12, which is a factor and we get: 6/10 that simplifies to 3/5.
Hope this helps!
Step-by-step explanation:
you cannot just put the actual numbers in and calculate ?
and you can't provide the correct problem statement, as it seems.
I assume you mean
an = 3n² - 1
a sequence starts with a1, so, n>=1
a1 = 3×1² - 1 = 3-1 = 2
a2 = 3×2² -1 = 3×4 - 1 = 12 - 1 = 11
a3 = 3×3² - 1 = 3×9 - 1 = 27 - 1 = 26
a4 = 3×4² - 1 = 3×16 - 1 = 48 - 1 = 47
a5 = 3×5² - 1 = 3×25 - 1 = 75 - 1 = 74
there, that is all there is to it. you really needed help with that ?
I like turtles
I really do
Answer:
y-3= -3/4 -(x+0)
Step-by-step explanation:
y2-y1 3-0= 3
x2-x1 0-4= -4
slope is - 3/4
y= mx=b
y = -3/4x + 3
