$9.10 each boxed lunch
work:
81.90 divided by 9 equals 9.10
1. 0.25x + 15 = 0.05x + 20
0.20x = 5
x = 25
2. 1/3x = x-22
-2/3x = -22
x = 33
The equation of the line is 
.
Solution:
Given points are (2, 7) and (0, 4).
Slope of the line formula:
Here 
Substitute these in the given formula.
Point-slope formula:
You can take any point in the given line. Here the point is (2, 7).
Multiply by 2 on both sides of the equation.
Add 14 on both sides of the equation.
Divide by 2 on both sides, we get
The equation of the line is .
When we reject the null and the null is true, we have a made a type I error
The null hypothesis in statistics states that there is no difference between groups or no relationship between variables. It is one of two mutually exclusive hypotheses about a population in a hypothesis test.
null hypothesis is denoted as H₀
Reject the null hypothesis when the p-value is less than or equal to your significance level. Your sample data favor the alternative hypothesis, which suggests that the effect exists in the population. When you can reject the null hypothesis, your results are statistically significant.
when the p-value is greater than your significance level, you fail to reject the null hypothesis.
Sometimes , we reject our null hypothesis even when its true
there we made a type I error in hypothesis
To know more about null hypothesis here
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The length<span> of a </span>social media interaction<span> is </span>normally distributed<span> with a </span>mean<span> of </span>3 minutes<span> ... The </span>length<span>of a </span>social media interaction<span> is </span>normally distributed<span> with a </span>mean<span> of </span>3 minutes<span> and a </span>standard deviationof .4 minutes<span>. </span>
