Answer: (0,5) is the answer
Step-by-step explanation:
y=mx+b (always remember this when dealing with problems like this* (m is the slope, and b is the y intercept)
in your equations, the m is 1 (since there is no value visible, it is assumed to be a 1)This means each time you move right one x value, you move up one y value. The b in your equation is a 5, so the coordinate is simply (0,5)
Answer: B: It gets flatter
Step-by-step Explanation:
Slope is basically a ratio of the change in the x-value over the change in the y-value over a certain interval. It also shows how steep the line is. The higher (or further away from 0) the slope, the “steeper” the line is. If the slope is 0, the graph just looks like a horizontal line
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!
A confidence interval is an interval of values that contains the true value of a certain parameter (or proportion, in this case), with a fixed confidence. it is so important to start choosing the level of confidence that we want to have.
once done this, we need an estimate for the parameter/proportion of interest, as confidence intervals are built around these estimates.
Answer: a ratio is a fraction or comparison of two numbers
so you put 15/21 and simplify giving you 5/7
Step-by-step explanation: