Multiply 72×80 or 8. (I'm not sure of its 8 or 80).HOPE THIS HELPS YOU:)
Answer:
We conclude that the mean number of residents in the retirement community household is less than 3.36 persons.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 3.36
Sample mean,
= 2.71
Sample size, n = 25
Alpha, α = 0.10
Sample standard deviation, s = 1.10
First, we design the null and the alternate hypothesis
We use One-tailed(left) t test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We reject the null hypothesis and fail to accept it.
Thus, we conclude that the mean number of residents in the retirement community household is less than 3.36 persons.
23.
2/5 + 1/2
you find the common denominator
which is 10
4/10 + 5/10
you add the fractions
9/10
he has completed 9/10 of the questions in the first 25 minutes
Answer:
can you be more specific?
Step-by-step explanation:
You are given the amount of water a Clydesdale drinks in 4 days, but because you want 28 days, you need to multiply that value by something. You find what you need to multiply it by, by dividing 28 by 4, which gives you 7. Now, you can do 120 × 7 = (100 × 7) + (20 × 7) = 840 gallons of water. I hope this helps!