1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lbvjy [14]
2 years ago
6

Suppose the weekly amount of money spent on maintenance and repairs by a company is NOT approximately normally distributed. Howe

ver, its mean and standard deviation are known to be $400 and $20, respectively. If $450 is budgeted for next week, what can you say about the probability that the actual costs will exceed the budgeted amount
Mathematics
1 answer:
UNO [17]2 years ago
8 0

Answer:

Probability = 0.00621

Step-by-step explanation:

We are given;

Population mean; μ = 400

Population standard deviation; σ = 20

Raw score; x¯ = 450

the probability that the actual costs will exceed the budgeted amount will be the p-value.

Thus, let's first find the z-score after which we will find the p-value.

z = (x¯ - μ)/σ

z = (450 - 400)/20

z = 50/20

z = 2.5

From online p-value from z-score calculator attached, using z = 2.5; one tailed hypothesis; significance level of 0.05, we have;

P-value = 0.00621

You might be interested in
What is the slip of the line shown in the graph A) -2 B) -1 C) 1/-2 or D) 1/2
Serjik [45]

Answer:

m = -1/2

Step-by-step explanation:

m=\frac{rise}{run}=\frac{1-2}{0+2}=\frac{-1}{2}=\boxed{-\frac{1}{2}}

Hope this helps.

6 0
3 years ago
Marisol buys 3 notebooks that each cost the same amount and 1 calculator that costs $9. The total cost is $21. How much does eac
adoni [48]

Answer: 4 dollars for each notebook

Step-by-step explanation:

21-9= 12

12/3=4

each notebooks costs 4 dollars

4 0
3 years ago
Read 2 more answers
Sample space
jasenka [17]

Considering it's concept, it is found that the number of outcomes in the sample space is of 9.

<h3>What is the sample space of an experiment?</h3>

The sample space is the <u>set that contains all possible outcomes for an experiment</u>.

In this problem, there are 2 trials, each with 3 possible outcomes(red, blue or green), hence the <u>number of possible outcomes</u> is given by:

N = 3² = 9.

More can be learned about sample spaces at brainly.com/question/25861936

#SPJ1

5 0
2 years ago
What is the value of f(4) + f(7)
DochEvi [55]

Answer:

11

Step-by-step explanation:


7 0
2 years ago
How many times dose 12 go into 41
jonny [76]

Answer:

3.42

Step-by-step explanation:

41/12 is 3.42

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is 33 percent in simplest form?
    15·1 answer
  • How do I solve systems by elimination
    9·2 answers
  • Write three numbers greater than 20 that have 9 as a factor
    9·1 answer
  • Select the ONLY incorrect way the angle can be named
    10·1 answer
  • Anything helps ! Brainilest to right answer only .!
    14·1 answer
  • Which description does NOT guarantee that a quadrilateral is a rectangle?
    13·1 answer
  • Please help me with this
    11·1 answer
  • Mr. Brown's statistics class consists of 21 seniors. The class took two quizzes in one week, and 12 of the students in the class
    7·2 answers
  • Solve -9 &lt;4x+3 11.
    11·1 answer
  • Please explain . . .
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!