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Answer:
The null hypothesis is:
The alternative hypothesis is:
Step-by-step explanation:
At the null hypothesis, we test if the mean is equal to a certain value.
At the alternate hypothesis, we test if the mean is less than, more than, or different from the value tested at the null hypothesis.
The tuft bind strength of a synthetic material used to make carpets is known to have a mean of 100 lb and standard deviation of 20 lb.
This means that the null hypothesis is:
Could it be that the average tuft strength is above 100 lb?
The world above means that the appropriate alternative hypothesis is:
6) slope is 1, y-intercept is 3, equation in slope-intercept form:
7) Slope of the line that goes through the points (3,9) and (-5,3) is
8) Slope = m=
y-intercept = b= -4
Step-by-step explanation:
6) Create table of coordinate points:
x y
-2 1
-1 2
0 3
1 4
2 5
Identify the slope:
Using formula:
Putting values:
So, slope is 1
Identify y-intercept.
y-intercept is found when x=0, so, looking at the table when x = 0, y= 3 so, y-intercept is 3
Equation in the form: y=mx+b
here m is slope and b is y-intercept
Putting values:
So, equation in slope-intercept form:
7) Find the slope of the line that goes through the points (3,9) and (-5,3)
Using formula:
Putting values:
So, slope of the line that goes through the points (3,9) and (-5,3) is
8) What is the slope and y-intercept of the following equation:
The equation is in slope-intercept form
The general equation of slope-intercept form is:
where m is slope and b is y-intercept
Comparing both equations we get:
Slope = m=
y-intercept = b= -4
Keywords: Equation of line using Slope
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