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
astra-53 [7]
3 years ago
5

The amount people who pay for electric service varies quite a bit, but the mean monthly fee is $168 and the standard deviation i

s $34. The distribution is not Normal. Many people pay about $90 in rural areas of the country and about $150 in urban areas of the country, but some pay much more. A sample survey is designed to ask a simple random sample of 1,200 people how much they pay for electric services. Let xbar be the mean amount paid. Part A: What are the mean and standard deviation of the sample distribution of xbar? Show your work and justify your reasoning. (4 points) Part B: What is the shape of the sampling distribution of xbar? Justify your answer. (2 points) Part C: What is the probability that the average electric service paid by the sample of electric service customers will exceed $170? Show your work. (4 points)

Mathematics
1 answer:
dybincka [34]3 years ago
4 0

Answer:

Part A)

Mean = $168

standard deviation = 0.98

Part B)

1200

Part C)

0.0207

Step-by-step explanation:

Find the given attachments for solution

You might be interested in
Divided 1/4 ÷ 8 by a whole numbet​
OlgaM077 [116]
The question was worded weird but if it’s asking for 1/4 divided by 8 then the answer is 2
6 0
3 years ago
What is the degree of one and a half full turns
anygoal [31]

1turn = 360 half a turn is 180
360+180=540

8 0
3 years ago
Thomas's cat, Rainwright, eats 0.8 cans of food every day. How much will Thomas spend on food in one week if each can costs $1.7
marshall27 [118]
1 week = 7 days
0.8 \times 7 \times 1.75 \\  = 9.8

Answer : Thomas spends $9.80 on food in one week.

Hope this helps. - M
3 0
3 years ago
Kristin and her family left their campsite to take a bike ride. They biked 5 miles west and then 12 miles north. How far are the
pickupchik [31]

Answer:

they are 17 miles away from their campsite.

Step-by-step explanation:

we get the answer by adding the miles traveled north to the miles traveled west, and we get the total number of miles they traveled away from their campsite.

5 + 12 = 17

8 0
3 years ago
I need help with question 6​
Brums [2.3K]

Answer:ur answer is 96

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • The perimeter of a rectangle is 99 inches. It’s width is 11 inches. What is the length of the rectangle? Solve algebraically and
    8·1 answer
  • Caleb Lowman bought a new car for $23,220 2
    11·1 answer
  • Positive square root of 29584
    10·2 answers
  • How do you round 32.6 to the nearest 10th
    12·1 answer
  • Please help!!!!! Thanks if u did
    7·2 answers
  • The angle of depression from a descending airplane to the control tower below is 60∘.
    5·1 answer
  • 128 ounce carton of milk states that there are 20 servings how many ounces are in a serving
    7·1 answer
  • a 10 meter piece of wire is cut into two pieces . one piece is 2 meters longer than the other. how long are the pieces ​
    14·2 answers
  • What is 3/2y - 3 + 5/3z when y= 6 and z = 3
    11·2 answers
  • Kathy and Mark Smith believe investing in retirement is critical. Kathy begin investing 20% of each paycheck in a retirement acc
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!