28.35 × 0.08 = 2.268
28.35-2.268 = 26.082
So the answer is 26.082
Answer:
4
Step-by-step explanation:
Step 1: Write out expression
(3x + 8) - (2x + 7)
Step 2: Distribute negative
3x + 8 - 2x - 7
Step 3: Combine like terms
x + 1
Step 4: Substitute
3 + 1 = 4
Permutation: If you are having a race with 10 people, there are 720 different ways that runners can finish the race. Since the order matters, this is a permutation.
10 x 9 x 8 =720
Combination: If you are selecting 3 members to join a club from a class of 10 students, there are 120 different clubs that can be formed. Since the order they are chosen doesn't matter, this is a combination.
(10 x 9 x 8) / 6 = 120
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: Not sure, but Ill go with C.
Step-by-step explanation: