Please help multiple choice ( links = report )
2 answers:
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Answer:
$1529.8
Step-by-step explanation:
Given:
Tammy has a job that has a weekly salary of $1,200.
But wants to switch a job that has a monthly salary of $11,700
Question asked:
How much more will she make per week if she switch to the new job?
Solution:
Monthly salary of a new job, she wants to switch = $11,700
Weekly salary of a new job, she wants to switch = ?
As we know : 1 month = 4.286 Weeks
Salary of 1 month for a new job, she wants to switch = $11,700
Salary of 4.286 Weeks for a new job, she wants to switch = $11,700
Salary of 1 Week for a new job, she wants to switch =
Now, we have to find that How much more she will make per week, if she switch to the new job.
More money she will make for a new job she wants o switch = Weekly salary for a new job, she wants to switch - Weekly salary of current job
More money she will make, for a new job = $2729.8 - $1200 = $1529.8
Therefore, she will make $1529.8 more per week if she switch to the new job.
Given Information:
Mean weekly salary = μ = $490
Standard deviation of weekly salary = σ = $45
Required Information:
P(X > $525) = ?
Answer:
P(X > $525) = 21.77%
Step-by-step explanation:
We want to find out the probability that a randomly selected teacher earns more than $525 a week.
The z-score corresponding to 0.78 from the z-table is 0.7823
Therefore, there is 21.77% probability that a randomly selected teacher earns more than $525 a week.
How to use z-table?
Step 1:
In the z-table, find the two-digit number on the left side corresponding to your z-score. (e.g 0.7, 2.2, 1.5 etc.)
Step 2:
Then look up at the top of z-table to find the remaining decimal point in the range of 0.00 to 0.09. (e.g. if you are looking for 0.78 then go for 0.08 column)
Step 3:
Finally, find the corresponding probability from the z-table at the intersection of step 1 and step 2.