Answer:
: The average time postal employees have worked for the postal service is 7 years.
: The average time postal employees have worked for the postal service is not 7 years.
Step-by-step explanation:
We need to know the significance level to decide if the average time worked for the postal service has changed according to the the random sample of 100 postal employees working time.
Aur hypothesis would use two tailed critical region, sice the hypothesis is an equality.
Answer:
<h2>FALSE</h2>
Step-by-step explanation:
The definiton of an absolute value:
The absolute value of any real number is a non-negative number.
|-25| = -(-25) = 25 > 0
Answer:
The slope is -1/5
Step-by-step explanation:
Answer:255 ft of fabric
Step-by-step explanation:
Just trust me
-hope this helped!
1. m=1/2 b=4 y=1/2x+4
2. m=-1/2 b=-3 y=-1/2x-3
3. m=-3/2 b=-1 y=-3/2x-1
4. m=1/2 b=-1 y=1/2x-1