120 seconds
1 min = 60 seconds
If it is parallel lines cut by a transversal then they are probably equal. Alternate exterior.
Answer:
a) There is no enough evidence of an increase in life expectancy.
b) P-value=0.07.
The P-value indicates that this sample result is not rare to happen (is greater than the significance level) even if the mean of the population is still 87 hours.
Step-by-step explanation:
We have to perform a hypothesis test on the mean, with known standard deviation of the population.
The null hypothesis, which we will reject or not, states that the life expectancy has not increase (it stays equal or less than 87 hours).
The null and alternative hypothesis are
The significance level is α=0.01.
The z-value is
The P-value for z is
The P-value (0.07) is greater than the significance level (0.01), so the effect is not significant. We fail to reject the null hypothesis.
There is no enough evidence of an increase in life expectancy.
Answer:
1st page: Less than (<)
2nd option: 1st and 2nd option
Step-by-step explanation:
1st page: Not up to 12 visitors
n < 12
2nd page:
-2 > -10
-8 > -10
3rd page:
b < 11 (The board is shorter than 11 centimeters)
b > 11 (The box contains more than 11 books)
b < 12 (There are fewer than 12 beetles in a jar)
b > 12 (The building is taller than 12 feet)
4th page
Choose the arrow pointing left and no shaded dot and place it on 20.2
Answer:
The last one
Step-by-step explanation:
In a right triangle the expression of the sin is the quotiont of the opposite side and the hypotenuse
- sin x° =