Answer:
22.85
Step-by-step explanation:
Answer:
Move down 5 and left 10
Step-by-step explanation:
just took this test
He can walk <u>1.6 kilometers in one hour</u> going at a constant speed of 400 meters every 15 minutes.
Answer:
The average number of sticks of gum a person chewed daily was greater than 8.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 8
Sample mean,
= 9
Sample size, n = 36
Alpha, α = 0.05
Population standard deviation, σ = 1
First, we design the null and the alternate hypothesis
We use one-tailed z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We fail to accept the null hypothesis and reject the null hypothesis. We accept the alternate hypothesis.
Thus, the average number of sticks of gum a person chewed daily was greater than 8.
Answer:
It is positive because the slope is positive.
Step-by-step explanation: