Answer:
The 90 % confidence interval for the mean population is (11.176 ; 20.824 )
Rounding to at least two decimal places would give 11.18 , 20.83
Step-by-step explanation:
Mean = x`= 16 miles per hour
standard deviation =s= 4.1 miles per hour
n= 4
= 4.1/√4= 4.1/2= 2.05
1-α= 0.9
degrees of freedom =n-1= df= 3
∈ ( estimator t with 90 % and df= 3 from t - table ) 2.353
Using Students' t - test
x`±∈ *
Putting values
16 ± 2.353 * 2.05
= 16 + 4.82365
20.824 ; 11.176
The 90 % confidence interval for the mean population is (11.176 ; 20.824 )
Rounding to at least two decimal places would give 11.18 , 20.83
The geometric terms modelled will be:
1. Plane
2 Point
3Point
4Plane
5Line
6.Point
7Point
8 Plane
9.Plane
10.Line
<h3>What is a line?</h3>
It should be noted that a line is a one-dimensional figure, that has length but no width. It should be noted that a line is made of a set of points that is extended in opposite directions.
The plane is flat surface.
Learn more about line on:
brainly.com/question/1655368
#SPJ1
Name the geometric term modeled by each object.
1. wall of a classroom
2. a knot in a piece of thread
3. tip of a needle
4 floor of a room
5 edge of a table
6. tip of a pencil
7 far distant star
8 screen of a flat TV
9 sheet of paper
10. light beam
Answer:
y = 15x
Step-by-step explanation:
Given x and y are in direct variation then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 2, y = 30, then
30 = 2k ( divide both sides by 2 )
15 = k
y = 15x ← equation of variation
Answer:
13 and 15
Step-by-step explanation:
13 and 15 are consecutive odd numbers and
13 + 15 = 28
The answer is (6x+1)•(x+4)•(x+3)
