The answer should be b=111
Answer:
b. 98
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 
Now, find M as such
In which 
is the standard deviation of the population and n is the size of the sample.
In this problem, we have that:
So a sample of at least 98 is required.
The correct answer is:
b. 98
Answer:
amount which will be withheld from John's pay for federal income tax this week is $54
Step-by-step explanation:
It is given that John Johnson's gross pay for a week is $520.95,
From table it is clear that his gross pay ( $520.95) lies between at least 520 but less than 530 category.
and he claimed one withholding allowance, therefore John Johnson has to pay $54 for federal income tax.
I hope this answer will help you
Answer:
6.67 miles per hour
Step-by-step explanation: Im 97.99% sure this is right!! :)
Answer:
C
Step-by-step explanation:
The best way to solve this is to transfer -217 to the other side. So add 217 to both sides
0 ≤ 7 + 217 - 28v Combine
0 ≤ 224 - 28v Now add 28v to both sides
28v ≤ 224 Divide by 28
28v/28≤224/28
v ≤ 8
You should have 2 questions on your mind.
- Why go to all the trouble of putting things on the opposite sides?
- What is the answer
1. You so all that trouble so that you don't have to switch the < to >. As long as you have the letter and its coefficient > 0, then you are going to be right.
2. The is v is less than or equal to 8. That's C
