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
lina2011 [118]
3 years ago
13

A city planner would like to estimate the true mean annual income of all households in the city. She selects a random sample of

50 households and determines that the 99% confidence interval for the true mean annual income of all households in the city to be $42,000–$68,000. Which of these statements is a correct interpretation of the confidence level?
Mathematics
1 answer:
Bumek [7]3 years ago
6 0

Answer:

If many random samples of size 50 are selected from all households in the city, approximately 99% of the intervals would capture the true mean household income.

Step-by-step explanation:

EDGE2021

You might be interested in
Lake Michigan's volume is approximately 1,180 cubic miles and its surface area is approximately 14,332,090 acres. The 2015 water
galben [10]

Answer:

a.)   depth of the lake = (volume of the lake) / area of lake

            = 173,693,585,360,000 / 624,305,840,400  = 278.22 feet

b.) 11 inches  = 0.9167 feet

    Water gained in cubic feet gained by the lake

         = 624,305,840,400 \times  0.9167  

         = 572,282,434,719.5 cubic feet

c.) the percentage change in the lake volume over that year

      = 572,282,434,719.5 cubic feet / 173,693,585,360,000 cubic feet

      =  0.0033

      = 0.33%

Step-by-step explanation:

i) acres to square feet :    1 acre = 43560 square feet

  therefore 14,332,090 acres  = 624,305,840,400 square feet

ii) 1 mile  = 5280 feet

   1 cubic mile  = 5280 \times 5280 \times 5280 = 147,197,952,000 cubic feet

therefore 1180 cubic miles  = 173,693,585,360,000 cubic feet

a.)   depth of the lake = (volume of the lake) / area of lake

            = 173,693,585,360,000 / 624,305,840,400  = 278.22 feet

b.) 11 inches  = 0.9167 feet

    Water gained in cubic feet gained by the lake

    = 624,305,840,400 \times  0.9167   = 572,282,434,719.5 cubic feet

c.) the percentage change in the lake volume over that year

  = 572,282,434,719.5 cubic feet / 173,693,585,360,000 cubic feet

   =  0.0033

  = 0.33%

7 0
3 years ago
In a sample of 5000 flips of a fair coin, tails will always come up 2500 times.
rodikova [14]

true or false? no question?

if so

Faults because 50% is based on each time you flip not the total amount

8 0
3 years ago
Yvonne sells Nine West shoes. She earns 4% commission on all her sales. Yesterday she sold
Fynjy0 [20]

Answer:

$60

Step-by-step explanation:

4/100= 0.04

$1500 x 0.04 = 60

4 0
2 years ago
What is biggee 4 m or 400 dm
Semmy [17]
I'd say 4 meters and 400dm are equal.
5 0
3 years ago
Toni bought 5 t-shirts for $35 . Each shirts cost the same amount
nexus9112 [7]

Answer:

35/5 =7 dollars

8 0
3 years ago
Read 2 more answers
Other questions:
  • Alexia figures out tge answer to 6×9 by lowering the thumb on her right hand. Explain Alexia's strategy.
    14·2 answers
  • Pablo wrote four division equations with 6 as the quotient. what could have been the four division equations he wrote?
    14·1 answer
  • Zohar is using scissors to cut a rectangle with a length of 5x – 2 and a width of 3x + 1 out of a larger piece of paper. The per
    5·1 answer
  • 3. f(-4) – 3.g(-2) =
    9·1 answer
  • Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (1,1). Express
    13·1 answer
  • Determined be whether the solution to 32=6(1)-4​
    14·2 answers
  • What’s the product? (3x-6) (2x^2-7+1)
    13·2 answers
  • Which is greater -2 or -2/3
    7·1 answer
  • Find the volume of a square pyramid whose base has a perimeter of 25 inches and a height of 9 inches. Round all answers to the n
    9·2 answers
  • Please help :) ! I give brainly
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!