Using the concepts of the t-statistic and the z-statistic, it is found that the correct option is:
The t-statistic does not require any knowledge of the population standard deviation.
The z-statistic is given by:
In which:
The t-statistic is similar to the z-statistic, the difference is that the sample standard deviation is used, not the population. Thus:
In which:
For large sample sizes, the sample and population standard deviations are close, thus t is a good estimate of z.
Thus, the correct option is:
The t-statistic does not require any knowledge of the population standard deviation.
A similar problem is given at brainly.com/question/16194574
Answer:
Detailed elaborated answer is given below:
Answer:
i think 5
Step-by-step explanation:
Step-by-step explanation:
In the equation y=mx+b, 'm' is the slope of the line and 'b' is the y-intercept.
First, you should find the slope of the line. To do this, use the equation M=y2-y1/x2-x1. Using the two given points (3,6) and (8,4), you can solve for M.
M=4-6/8-3
M=-2/5 (-0.4 in decimal form)
Now, your equation is y=-0.4x+b
Next you must solve for b to find the y-intercept. You can do this by subbing one of the given points in for x and y.
Using the point (3,6):
y=-0.4x+b
6=-0.4(3)+b
6=-1.2+b
Isolate b:
6+1.2=b
b=7.2
And now you have the equation of the line!
y=-0.4x+7.2 (IN FRACTION FORM: y=-2/5x+36/5)
Give your answer in its simplest form
Answer:
1/6
Step-by-step explanation:
Males = 1
Females = 5
Ration: 1:5
Male fraction = 1/6
Answer:
Step-by-step explanation:
Let number of male = x
number of female = y
then according to given condition , we get ,
y =5*x
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B. 70°
C. 250°
D. 55°
Answer:
A:100°
Step-by-step explanation:
BECAUSE IS THE SAME
Answer:
The range will be 103 because 148-45 = 103
Answer:
7 units
Step-by-step explanation:
d=√(x2-x1)² + (y2-y1)²
x1=-5
x2=-5
y1=1
y2=8
d=√(-5--5)² + (8-1)²
d=√0² + 7²
d=√49
d= 7 units