Answer:
a.
H₀:β=0
H₁:β≠0
b.
p-value: 0.2935
95% CI: [-45.91;19.71]
Step-by-step explanation:
Hello!
You need to make a linear regression test. For this, you have two variables
X: Operators
Y: Wait time
x: 4 ; 5; 6; 7 ; 8
y: 385 ; 335 ; 383 ; 344 ; 288
The linear regression equation:
Yi: α + βxi + εi
a. The Hypothesis for a two-tailed test for the slope is:
H₀:β=0
H₁:β≠0
b.
The statistic is
t= (b-β)/√Sb₂ ~
I've used a statistic software to calculate the values
b= 10.31
= -1.27
p-value= 0.2935
The 95% CI for the slope, using the formula:
b±*Sb
is,
[-45.91;19.71]
I hope you have a SUPER day!
Answer:
D
Step-by-step explanation:
If (2,-7) and (8,15) is the end points of the diameter, they must be on the circle.
Here is a graph: search up https:// www . desmos. com /calculator/ yl9uiyhttps, sorry I couldn't put up a link cause of brainly. Type it in without spaces.
We know that
∠1=∠5------------> by corresponding angles are congruent
so
∠5=58°
and
∠5+∠7=180----------> by supplementary angles
so
∠7=180-∠5--------> 180-58--------> 122°
the answer is ∠7=122°
Answer:
Step-by-step explanation:
<u>The mean number of siblings:</u>
- (0*5 + 1*10 + 2*8 + 3*2 + 4*1 + 5*1)/(5 + 10 + 8 + 2 + 1 + 1) =
- 41 /27 =
- 1.52 (rounded)