Answer:
See the attached file
Step-by-step explanation:
Given data
Say numbers of printer made per hour = 5 printers
Hence in 1 hour, they will make 5 printers
in 4 hours they will make
=4*5
=20 printers
The graph of this situation when plotted will give a straight line graph
Kindly find attached a straight line graph for your reference
Answer:
We are given that Among 180 homes in Hyde Park, 25 were found to have unsafe radon levels. Among 230 homes in La Grange, 50 were found to have unsafe radon levels.
Claim : the two towns have different rates of unsafe radon levels.
Let and
be the rates of unsafe radon levels of Hyde Park and LaGrange respectively .
Among 180 homes in Hyde Park, 25 were found to have unsafe radon levels
So,
Among 230 homes in La Grange, 50 were found to have unsafe radon levels.
So,
We will use Comparing Two Proportions
Formula of test statistic :
Substitute the values
test statistic :
test statistic : −2.053
Refer the z table for p value
p value = 0.0202
α= 0.05
Since p value < α
So, we reject the null hypothesis that the two towns have same rates of unsafe radon levels.
So, Claim is true.
Answer:
Option C. The open and closed circles are reversed and the graph shifts up.
Step-by-step explanation:
From the graph of the functions (Attached below) you can check that for the interval 0 ≤x<1 the floor function takes the value 0 everywhere, also it has closed brackets at 0 and open brackets at 1.
On the other hand for the interval 0<x≤1 the ceiling function takes the value 1, also it has open brackets at 0 and closed brackets at 1.
For that reason we conclude that the open and closed circles are reversed and the graph shifts up.
