Answer:
True
Step-by-step explanation:
A normal distribution shows a dense center , which would be the mean. Given a population or sample, the bulk of the data would be found near the mean and and spreads out thinner towards the ends when the data is said to be normally distributed. When graphed you will see that the data form a bell-shaped curve.
Attached below is an example of how it would look:
Answer:
Equation :
Gallons needed = gallons
Step-by-step explanation:
It is given that:
Gallons of paint used by Tyler =
Area of fence painted = 5/7
Let,
x be the whole fence needed to paint.
Because we know that 5/7 of the fence is painted with 5/4 gallons of paint.
Multiplying the equation with 7/5
Therefore,
Equation :
Gallons needed = gallons
Answer:
The critical value for the 95% confidence interval is z = 1.96.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of
So it is z with a pvalue of , so z = 1.96.
The critical value for the 95% confidence interval is z = 1.96.