Answer:
When the difference in the mean is about 20
Step-by-step explanation:
I did the test
tan(angle) = opposite leg / adjacent leg
tan(20) = x /10
x = 10 * tan(20)
x = 3.6
The answer would be p= -2
To check it:
-2(5(-2) - 3) = 26
-2(-10-3) = 26
-2(-13) = 26
26 = 26
Answer:
The null hypothesis is 
The alternate hypothesis is 
Step-by-step explanation:
To investigate this further, the economist would like to test the claim that the percent of thirty-year fixed-rate mortgage loans that have a 4.75 percent interest rate is less than 22%.
At the null hypothesis, we test that the proportion is of 22%, that is:

At the alternate hypothesis, we test that the proportion is less than 22%, that is:

1/2 yards times ) is 3, so 1/2 would be the answer.