Answer and Step-by-step explanation: The null and alternative hypothesis for this test are:


To test it, use F-test statistics and compare variances of each treatment.
Calculate F-value:



F = 1.8356
The <u>critical value of F</u> is given by a F-distribution table with:
degree of freedom (row): 20 - 1 = 19
degree of freedom (column): 20 - 1 = 19
And a significance level: α = 0.05
= 2.2341
Comparing both values of F:
1.856 < 2.2341
i.e. F-value calculated is less than F-value of the table.
Therefore, failed to reject
, meaning there is <u>no sufficient data to support the claim</u> that sham treatment have pain reductions which vary more than for those using magnets treatment.
Answer:
2x
Step-by-step explanation:
3.25, 3.5, 4.25, 4.5, 4.75
You can write the equation
x+1+x+3+x+5=576
Combine like terms
3x+9=576
Subtract 9 from both sides
3x+9-9=576-9
3x=567
Divide both sides by 3
3x/3=567/3
x=189
The first integer is 190, the second is 192 and the third is 194 (enter it into the original equation to get those answers)
Answer:
Equation is 

Step-by-step explanation:
Given
Jason: 6 Movies and 4 popcorn
Michael: 2 Movies and 3 Popcorn
1 Popcorn = $5
Total = $131
Required
- Write an equation to solve
<em>Represent Movie with M and Popcorn with P</em>
For Jason, we have:
6M + 4P
For Michael, we have:
2M + 3P
Add these parameters together
Jason + Michael = $131

Collect Like Terms


Hence the equation is 
From the question, we have that

Substitute 5 for P


Solve for M



